To make a bad judgement call and sleep with a person who is particularly ugly and kinda crazy, rather like Gary Busey. Extra points if they resemble Gary Busey perfectly, especially if they have freaky teeth.
Friends are henceforth required to sing "Getting Busey With It" to the tune of Will Smith's "Getting Jiggy With It" and never let them live it down.
Girl: Dude, check out that gross toothy girl he's with.
Boy: I know, he's totally getting Busey with it.
Both: Na-na-na, na-na, na-na!
When a manjob or a brojob just is not enough to help out your best of friends. Budsex might be in order. It is where your best friendmay penetrate you anally for his own intense personal pleasure.
It is not gay.
Bro#1 : Hey bro, I know she dumped you and I see how down you have been, even after several manjobs. Since it's your birthday, how about some budsex? My treat!
Bro#2 Bro, that would be awesome, it would really help me out.
verb: to smile annoyingly big, being sure to show all teeth and some gums. sometimes done intentionally, other times because the person busey-ing can't help it, such as the actor Gary Busey.
Dude, you'rebusey-ing so badly that I can see your gumline!