That's a pertty mouth on you, boy.

phrase. Originating from the movie "Deliverance", when you hear this, run. Apparently, you've just pissed off some country bumpkin and he's about to ass rape you. Nice going, city-slicker.

This phrase is more often than not followed by "I'mma make you squeal like one o' my pigs!"

You: Hey, you ain't got no teeth, so no dental records, and yo mama is yo sista and yo aunt and yo grandmama! Just like all of 'em! How can they tell you apart from the rest of them country bumpkins???

Billy Bob Joe Brown: That's a pertty mouth on you, boy...

You: What's that supposed to mean?

Billy Bob Joe Brown: *points gun* Drop them britches, son.

You: Um um um ok...

Billy Bob Joe Brown: Imma make you squeal like one o' my pigs!

You: What's tha- WRRREEEEEEEEEEEEEEEEE!!!!

by Simian Infernus August 20, 2009

Flag

Get the That's a pertty mouth on you, boy. mug.