At some point, all GMs learn to completely ignore side conversations that occur out-of-character between the players in the middle of narrative description.

And in case you thought TV Tropes didn't have enough obscurely named tropes, apparently Boss Nass is an example of "The Toblerone". [EDIT: TV Tropes later changed the title of this trope page to Boisterous Bruiser. How boring.]

Transcript

Jar Jar: Da secret hidey place is dissa way.
Qui-Gon: Lead on!
R2-D2: {aside} First sand, now mud...
GM: Captain Tarpals meets you, riding on a kaadu—
Obi-Wan: What's a kaadu?
Qui-Gon: A small Russian motorbike modified with skids for snow travel.
Jar Jar: No, silly! It's a baby dinosaur pony!
R2-D2: {aside} Should have let me bake it from orbit...
GM: —and escorts you past ranks of Gungans into a clearing, where Boss Nass awaits.
Jar Jar: Theysa lookin' mighty hungry.
Boss Nass: Ah, da Jedi! Did yousa bring back my bongo?
Qui-Gon: What's a bongo?
Obi-Wan: It's a kind of fishing lure.