1) A replacement for the word jackass
2) a
inside joke that is often formed between a group of friends when they have a mutual
friend named jack, especially if he's a total Jackass or he mistreats
girls
1)Greg: My science teacher is a total jackbutt!
Bill: Dude that is such a sixth-grade thing to say!
2) Anne: So Jack's my
friend and all but he's being a total Jackbutt! I mean he Kissed Nicolebut he doesn't even
like her!!!! What a Jackbutt! No offense to Jack's
butt.