Smack ass day means to smack someone's ass really hard or grab it .basically you just hit someone's but.
by Kehlani PERIOD April 12, 2019
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April 12. Smack anyone’s ass and say “it’s national smack ass day”
*smacks ass*
Joey: “bruh that’s gay
David: “nah man, it’s national smack ass day.”
by Fluorescent_Dildo April 11, 2019
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April 15 is the day you smack a girl’s ass and they can’t get mad
Boy: Yo, its April 15, you know what that means. It’s National Smack Ass day
Girl: Fine, go ahead
by ladybellum24 April 14, 2019
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This is the day that u can smack your crush booty day no matter what
Girl:”smack”
Boy:what was that for

Girl: is November 25 smack your crush booty day no matter what

Boy:bet “smack”
Girl:ohhh shit

November 25 smack ass day
by Michero8027YT November 23, 2019
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On May 28th taken or not you're allowed to smack someone's ass
Yoo Tyrone it's national smack ass day
by Daddy-thicc April 11, 2018
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