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1. Three piece
A different name for a pistol. Usually a Glock 17, a pistol used by most gangsters.
Guy 1:Yo shut up or i'll pull a three piece

Guy 2:Wow calm down
2. three piece
the act of a female sucking your dick, tickling your balls and licking the guch (spot in between the ballsack and bootyhole)
denise was giving me the three piece but she got to close to the bootyhole, so I had to slap a bitch.
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