A fancy term, usually used by formal businessmen and rich gentlemen, when they see "dat
ass".
Mostly used during dinners party and
high-class social gigs.
The two "n's" represent the
ass.
James: Oh damn! Look a that girl's
ass. I'd hit it from the back, right lads?
Bob: I'd have a go on her.
Horatio: Oh quite! That is the professional bunnage we all know and
love.