Do Ferengi lose their ears like humans lose their first teeth?

I’ve recently rewatched ST:DS9 – Season 7, Episode 6 – Treachery, Faith and the Great River. In this Episode, Nog tries to get a graviton stabilizer and makes several deals in order to get one. In doing so, he does several deals and brings O’Brien into an uncomfortable situation. O’Brien then asks Nog to explain and Nog refers to the Great Material Continuum.

Nog: You need to have faith, chief.

O’Brien: In a rumour?

Nog: No, in the Great Material Continuum.

O’Brien: Ahhhhh. Who are they?

Nog explains the continuum.

O’Brien: I must’ve missed that class in engineering.

Nog: Not on Ferenginar. We learn about the Continuum while we still have our first set of ears.

I think I’ve never heard before or again that Ferengi have different set of ears. So

• Is this meant literally, like humans lose their first set of teeth, or figuratively, meaning they’re still young and don’t have the lobes for business yet?

• Does it mean, like NKCampbell suggested, that their ears grow in different stages?

• Should it be literally:

  • At what age do they lose their first set of ears?
  • Do they lose their ears on a regular basis and they regrow or is it like human teeth: you have some when you’re young and then as a grown up?
  • Is there a depiction somewhere of a Ferengi without ears?

• Should it be in stages

  • How many stages are there and when do they grow?
  • Is there a depiction somewhere of the different stages?