(noun)
An activity or object that is fun, yet dangerous. From the television show
Stella, which ran for one season on Comedy Central. It originated in the episode "Camping," in which Michael Ian Black, David Wain, and Michael Showalter have a conversation with a mysterious mountain man.
Mountain Man: Yes, the woods are fun.
Wain: Like
boobs?
Mountain Man: But they can also be dangerous.
Showalter: Like fire
boobs?
Bill: Wanna throw my pocketknife at some trees?
Jim: I dunno, dude, it could end up being like fire
boobs.