Butt five 

When someone slaps a person's butt.

A) "Did you just slap my butt?!"

B) No, I didn't I gave you a butt five"

Butt five by BruhBiatchh March 11, 2015

Five Finger Butt Blast 

Noun - Anal fisting

My boyfriend, Mike, begged me for a five finger butt blast last night. Now my wrist is sore.

Jeremy gave Jacob a great five finger butt blast today, he said he's never gotten his fist so far up another man's rectum before.

Five Finger Butt Blast by Johnny Jerk Off September 1, 2013