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The burning senstation you get in your legs and buttocks after a really hardcore sexual episode.
after two hours of cunnilingus his/her tounge was filled with lactic acid.

While fucking her doggy style his ass and legs began to feel the effects of lactic acid and he could no longer stand
by Diddilly Doo doo May 17, 2006
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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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