Invented very recently, this word is used as an exclamation of various sorts, but noticeably an exclamation of overwhelming suprise.
Chris Bradford: How much is rent on that apartment?

Dude: $1500 dollars.

Chris Bradford: SWEET MONKEY BUTT FUCKER that is expensive
by mista_g October 28, 2005
Get the Sweet Monkey Butt Fucker mug.