The attraction to homeless people.
There's just something about that musty smell.
Firend: I have something to tekll you.
Other Friend: What?
Friend: I'm a hobosexual.
Other Friend: WTF is that?
Friend: Ya know thatguy that lives under that overpass by the mall?....
He got evicted from his appartment so he is over there trying to hook up with that fat girl so he has a place to stay, you can't be anymore hobosexual than that.