ka·boo·mer·ang Show Spelled kuh-boo-muh-rang
1. characterized by or proceeding from a stupid action.
2. something that comes back to bite one in the ass.
3. has the appearance of something cool, but ultimately turns out terribly for the initiator.
7. Informal. a kaboomerang.
Man#1: So, then I got so mad that lit my shirt on fire to prove he was wrong.
Man#2: And how did that work out for ya?
Man#1: ...had to go to the hospital.
Man#2: Well that sucks.
Man#1: Yeah, it was a total kaboomerang.