The rythmic grinding together of two snatches.
Paula and Brittney sure made a great film "Taco Slappin'".
by Fishfry April 15, 2007
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It meanz, when ur hella hyphy in your car. Ur car is bumping, the bass in the car is crazy. ITZ A BAY THING, YADIDA!!!! YEEEEEEEEEEEEEEEEEEEEEEEEEEE!!!!!!
Mistah Fab - Slappin In The Trunk

Becuz its slappin in the trunk / knockin in the trunk / soundz like there must be a body in the trunk / becuz itz slappin in the trunk / knockin in the trunk / soundz like there must be a body in the trunk / shhhhhhh / don't tell nobody / don't tell nobody / shhhhhhh / don't tell nobody /...... itz a body in da trunk
by Bay Boss September 7, 2006
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Taking doses (usually paper blotter acid) of LSD orally. Eating acid.
Shit, we've been slappin' tabs for a couple of days, I'm fuckin' peaked out. You got any buds?
by Bill B. June 25, 2005
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a bad habit that threatens the fabric of society and the health of the boobs everywhere
random chick: oww... why did you do that?

me: I am trying to quit really.

random chick: boob slappin?

me: We got meetings!
by crampist January 24, 2008
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when 2 males will slap their cocks against each other.
first one to get an erection loses.
You wanna go try some slappin' salamis?
Nah, i know ill lose ;)
by Javier McWoo November 13, 2007
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to slap someone over and over again
usually associated w/ pimps, baby powder, and hoes and/or bitches
imma start bitch slappin somebody if i dont get my money
by anon December 15, 2003
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When partaking in sexual intercourse and the mans testicles slap against thee parters genitalia primarily slapping the clitoris or groin.
Last night we were slappin skin so hard i couldn't walk this morning.
by lomik November 4, 2007
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