When one thinks it would be funny if they jacked off while playing blackjack. Everyone else in the semicircle must take your sweating, shaking, and grunting as a sign of having a bad hand.
Gambler: What's that guy's problem?
Other Gambler: Either he just stayed with eight, or he's just hit 21st base.
by Compulsive Gambler July 16, 2010
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when you proced to have 69 with your partner's toes
by EAXSWC September 23, 2006
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Giving yourself a blow job. Then your penis blows up. And then the world blows up. And a penis takes its place.
Friend Isn't that just 20th base but extreme?

Me:Fuck yeah it is. 21st base is better though.
by Please. Stop. April 04, 2017
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