pop a gat 

to shoot someone with your gun

Charles Edgar Phillips III was walking down the street when suddenly the mob drove up next to him and popped a gat at him. "My eye!!!!" Charles yelled, "How dare you pop a gat in my eye!" Charles Edgar Phillips III sued and won. However because he messed with the mob, they came and popped a gat at him again and killed him.

pop a gat by Lil dicnary27 September 22, 2008

Pop a gator

A one-man dance move in which the dancer keeps his feet stationary and bends as far back as possible while moving arms, head and torso festively. Performed almost exclusively by men in New Orleans during Mardi Gras parades, particularly when a woman is shaking her behind.

Look at that girl shakin' her ass! I'ma pop a gator!! Who dat?!

Pop a gator by maxkeepsitreal1 February 20, 2010