“Oojakapiv”: what does this word mean?

Something like: dingbat, thingamabob or thingy .

From

1925 E. FRASER & J. GIBBONS Soldier & Sailor Words 215 Oojah (also Ooja-ka-pivi), a substitute expression for anything the name of which a speaker cannot momentarily think of, e.g. ‘Pass me that h-m, h-m, oojah-ka-pivi, will you?’ 1931 J. VAN DRUTEN London Wall II. ii. 73 There's a whole lot in the Oojah Capivvy now. 1962 Sunday Times 4 Feb. 31/6 This was the catch-phrase in a music-hall song in use during the first world war... I remember the line and the tune: ‘You cannot eat it, or see it, or hear it, you just ask for Ujah-ka-piv.’ 1966 ‘L. LANE’ ABZ of Scouse 78 Whur's ther ojah-capiff?, where is the hammer, spanner or whatever it might be? 1992 Hobart Mercury 8 Aug., There are several of Ms Bosanky's turns of phrase that are pure Downunder. For instance, ‘hoojah-kapippy’..or a ‘whatsitsname’ euphemism.

World Wide Words discusses this briefly: they suggest that ooja, oojah capivvy and variants originated in British Army argot around the time of WWI:

‘Pass the oojah.’ says the one-armed man who is playing billiards. What is the oojah? The oojah is any object in Heaven or earth; it is the thing which has no name or the name of which you have temporarily forgotten. — Washington Post, Oct 1917

[Edit: the OED confirms this quotation as their oldest citation for the usage, and suggests an etymology: “Perhaps [from] Urdu and Indo-Persian †ḥujjat kāfī fīhi, lit. ‘the argument is sufficient’, there’s no more to be said about it.”]

A form more familiar to some readers (it certainly was to me) may be oojah-cum-spiff, which is used rather differently: it’s an adjective meaning roughly “all right”, “in good order”, similar to e.g. tickety-boo. This turns up several times in P.G. Wodehouse’s books (the Jeeves novels, and iirc the Blandings ones too):

“Yes, I think we may say everything’s more or less oojah-cum-spiff. With one exception, Jeeves…”

[Edit: OED suggests that the spelling of this version is influenced by the then-popular use of the Latin pronoun cum.]

When I lived in Leeds Yorkshire UK, 'Oojah--kapivvy' was definitely part of our family vernacular and was particularly used by my Father. Dad was a WW2 Vet, so he may or may not have picked up the expression during his years in the army. It is synonymous with Thingamajig, Whatchamacallit etc. Sometimes, though it was shortened to Oojah. Here in New York no one has ever understood this wonderful expressive term.To me it has such a lovely flow.

It would appear to be quite country wide rather than Local as both my wife , from London, England, and myself from Lancashire both remember our parents using oojacappivvy & oohjahmaflip. they were all born about 1904-1916 so the grandparents probably adopted the saying in WW1. But having been used by 3 generations I have never heard our children or grandchildren use either term. I wonder if they just use an asterisk when texting & cant remember the name of something!

oojamaflip, OED

Like thingamabob or whatchamacallit, oojamaflip (also spelled whojamaflip, hoojamaflip, etc.) is a word used to refer to something a person doesn’t know the name of, or doesn’t wish to specify precisely. The earliest evidence OED‘s researchers have found for the word so far is from 1969, in a pair of advertisements for a product whose precise nature is (appropriately) unclear

Oxford Dictionaries, origin of oojah says: "Early 20th century, of unknown origin"

I'm from Sydney, Australia, and part of a many-generations-of-Aussies family. My grandfather, also a proud Aussie, used to call a toffee apple a 'hoojah-kapivvy-on-a-stick'. I never heard him use the term 'oojah' or 'hoojah' for anything else, but it seems the meaning was similar from the context - something like 'that thingamabob on a stick'. The pronounced 'h' was clear when he said it. I can't recall him writing it down so my spelling is how I interpreted how he voiced the expression.

A previous answer said that a WW2 vet may have picked up the expression in the army; my grandfather was in the Australian forces in WW2 so may have picked up the expression there as well.

In any case, it may be more than local or countrywide in the British Isles; it definitely infiltrated some of the Commonwealth at least.

I'm in my forties now and can't find many Aussies familiar with the expression; those who are, are generally older than myself.

I have a feeling it may have originated from a corruption of Indian words brought over by the troops when they returned to uk. In the same way doolalay ( meaning daft) came over. Or a cup of char for tea.

I have this cluster: My granddad said oojahkapiv and kisswossties elbows! Not to mention spiders’ kneecaps. He’d come out with these nonsense terms to amuse his grandkids, bless him. He was in Ww1. He also liked the kidl’eativytoo song. Does eat oats, as in plural of Doe

I am quite happy to accept this as the origin of oojah and {oojah + anything else}

1917 Washington Post 22 July 10/1 An entirely new crop of slang has come into use in the British army during the past year... Oojah may come from the East, with ‘cushy’ and ‘blighty’ and ‘hondook’.

As it is colloquial, standardised versions and spellings will not exist for some of the more exotic versions.

oojah, n. colloquial.

A thing whose name one cannot remember, does not know, or does not wish to mention; (by extension) a useful implement, a gadget.

1917 Punch 24 Jan. 52 (caption) N.C.O. ‘Here! Just grab the oojah an’ dash round to the tiddley-om-pom for some umpty-poo!’ Private..learns later that he was expected to fetch a bucket of coke from the stores.

Etymology: Origin uncertain. Perhaps shortened < a formation similar to whatchamacallit n. (compare what-d'ye-call-'em n.); compare oo pron.2, but perhaps either < a nonsense word used as an exotic-sounding name (see quot. 1901 in etymological note), or < Urdu and Persian ḥujjat argument, pretence, excuse and its etymon Arabic ḥujja argument, pretext (see etymological note and compare oojah capivvy n.).

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oojah capivvy = oojah n.

Etymology: Origin uncertain. Perhaps < Urdu and Indo-Persian †ḥujjat kāfī fīhi, literally ‘the argument is sufficient’, there's no more to be said about it ( < ḥujjat (see oojah n.) + kāfī sufficient ( < Arabic kāfī sufficient) + fīhi in it, about it), ... Compare modern Persian ḥujjat kāfī that's all there is to it. Compare ..with the form in -cum- compare oojah-cum-spiff adj.

1917 Lines (Divisional Signal Co., Royal Engineers) Nov. 13 Things We Don't Expect... A civi to understand the order ‘Take this ujakapivi and go to the oojah and bring some what's it.’

1992 Hobart Mercury 8 Aug. There are several of Ms Bosanky's turns of phrase that are pure Downunder. For instance, ‘hoojah-kapippy’..or a ‘whatsitsname’ euphemism.

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oojah-cum-spiff Etymology: Perhaps an alteration of oojah capivvy n., after cum prep. and spiffy adj.

Fine, all right.

1930 P. G. Wodehouse Very Good, Jeeves i. 25 ‘All you have to do,’ I said, ‘is to carry on here for a few weeks more, and everything will be oojah-cum-spiff.’