What does "Binkssssss, yousa havena liveplay with thisen hisen" mean?

The accurate translation would be "You have a life-debt with this man/person?"

As can be derived from other dialogue in the script:

Yousa - You/your/you are

• Yousa point is well seen - Your point is well taken.
• Yousa goen tada Bosses. - You're going to the Bosses.
• Yousa in big dudu this time. - You're in deep shit this time.
• Wesa wish no nutten in yousa tings... - We wish no involvement in your affairs...
• Wesa give yousa una bongo. - We'll give you a bongo.

havena - to have

• No other examples in script

liveplay - life-debt

• no other examples in script, but obvious from Nass translating Qui-gon's term "life debt" into this.

with - with

• same word as in normal English (sorry, "Galactic Standard")

thisen - this

• no other examples in script, but obvious in context

hisen - his/he is

• Hisen to be pune-ished. - He is to be punished.
• Hisen live tis yos - His life is yours.

The problem is that "Begone wit him!" is used by Nass, so "hisem" can't necessarily be a straight replacement for "him". On the other hand, the entire phrase "thisen hisem" could indicate a definitive third person pronomial phrase in some contexts. There's also no way of telling if they have gender differentiation in this case.

Well, to be honest the main problem is that it's not like they had a linguist to keep things consistent.