One of the men killed in a triple slaying in Queens over the weekend had apparently been taunting a drug dealer — throwing around some of the $900,000 he stole from the thug, sources said yesterday.

James Bussereth, 33, had boasted of a $20,000 bounty on his head after the theft — and apparently didn’t care who saw him flaunting his new wealth.

Friday night, Bussereth and three pals were ambushed by at least two thugs armed with AK-47-like assault rifles.

Bussereth and two pals died. The other man survived.