to display great proficiency in the popular video game "Fortnite", or to act in a manner that would suggest that one is very horny.
"Dude, were you slappieing?" "Hell yeah. I got a victory royale and then I slappied my girlfriend."
by onearmedwolfkr March 18, 2021
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The act of placing one's penis on the unconscious face of another man (i.e. when passed out or asleep)

A very effective and useful taunt
Hey Kuzz, slappy slappy!

I slappy slappied you good last night

Nice passing out...SLAPPY SLAPPY
by Jeremy February 24, 2004
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1. stupid or moronic person
2. see slap dick
3. slacker
Hey slappy, what have you been not doing all afternoon at work?
by Bud E Love May 07, 2003
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The act of hauling ass on your skateboard and slapping it into a curb at an angle that gets you on top of it and grinding. There are many variations but a true slappy involves speed and grinding...John Lucero, Ricky Winsor, Natas Kaupas and many others are known slappy legends.
Dude..go grab a twelve pack and we'll do slappys on that red curb.
by Monty Grind June 13, 2012
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Adjective; a state of sleepiness or tiredness that occurs simultaneously with happiness or contentness as a result of the aforementioned weary state.
I get really slappy after I'm coming down from my high.
by RonJeremysFatCock August 20, 2017
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Adj - Quality of making a satisfying slap sound when struck with a palm.
*slaps* "Ooooo, that ass is slappy."
by KamiBee August 01, 2010
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