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1.
bum beads are droplets of saliva left after some serious ass rimming.
"Did you meet Nick at the gay bar the other night?" "Yeah, sure did. I went back to his place and rimmed him for ages. When I was done, I pulled away and could make out his bum beads."
by Jonathan June 14, 2006
 
2.
A word which is used to express displeasure.
Oh Bum Beads, I've just dropped my bat!
by dogboy1973 November 29, 2005