letting the person your with,Boyfriend,Friend,Bitch..that you dont take NO bullshit,or u gonna get Rachet,
john was flirting with other hoes on the side,until trina started bossin up on him.
by smiley326 September 13, 2011
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When a girl (or a guy) preforms a sexual act for drugs.
Betty's been bossin up for her crack
by yowasup August 10, 2006