A woman's booty that is so big that if you were to vertically slap the booty at a 90 degree downward angle, three of your fingers and 75 percent of your palm would connect with ass
Damn Mike, you see that downward slapper over there?! I bet she could make that shit clap for days!

Hey bro, Mike started seeing a new girl, but she don't got a downward slapper. That shit ain't cool.
by xo805 December 12, 2020
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