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A sexual position where the man inserts his cock AND his balls into the woman, resulting in infinite amounts of pleasure and possibly death by orgasm.
Shit, man, I'm still pleasured from when I did the 21 with Jeana last night.
by Bob McBobbenstein August 26, 2008
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Jun 13 Word of the Day
No Bull Shit, and old hacker acronym which is usually used to signify that the talk will be serious.
User: I need to talk to you, NBS.
User2: ESAD, Noob.
by Heko July 17, 2004
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A numerical code term for the sexual position doggy style. Looking at two people from the side, the legs of the person on all fours make the 2 and the thruster's legs make the 1.
Want to do the 21 with me tonight?
by peggacorn January 15, 2017
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