What do you call a joke about a butt?

[Meg]

ill thumbs up the right ones, and thumb down the wrong

 

[Turbo]

A Meg joke

 

[hourse]

butt-ered jock.

 

[Allistar]

a butt joke?

 

[its.me(:]

a BUTT-CRACK.... get it? lol

 

[Scott]

i dont joke around when it comes to butts

 

[stephanie rulez dood(:]

a buttcrack

 

[babii_gurl_x91]

wise crack?