The act of slapping, and then firmly grabbing a girl's butt. Could possibly be used humorously with other objects.

Term coined by K-Tuck.
I'd like to give Ms. Anna a nice slap-grab.
by Hof July 25, 2006
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To slap and then grab in the same motion.
"I think that guy just gave my ass the Schmisek Slap Grab."
by The Silent Assassin August 16, 2006
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Okay so since there’s nothing to do this month i’ve decided to make it slap grab ass month. SPREAD THE WORD. All throughout December you can slap someone’s ass and then grab it.
*SMACK*

Emma: Why’d you just slap my ass and then grab it?!?!?!
Mya: Because it’s December! Slap Grab Month! You know what that means.
by BaddestBitchPeriod14 December 13, 2019
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December is all about fun and excitement so why not grab or slap someone’s ass for your enjoyment!!
girl: ow why did you slap/grab my ass
boy: duh because it’s national slap and grab ass month!
by hello yam November 30, 2020
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December is the time for celebration and enjoyment so why not slap and grab someone’s ass!
girl: why did you slap my ass
boy: because it’s national slap and grab ass month!
by hello yam November 30, 2020
Get the NATIONAL SLAP AND GRAB ASS MONTH mug.