2 definitions by tynan09

Top Definition
when a girl is a total slag and will sleep with anyone who thinks it at all.(dirty little stop out)
if a girl cheats on her guy cause she wanted dick you say your such a dilso
by tynan09 November 11, 2007

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bsb
when a girl tells you that she had sex in the back seat of another persons car and does it rapeatedly (back seat bitch)
friend 1:i shag a guy in his car last nite
friend 2:you such a bsb
by tynan09 November 11, 2007

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