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When someone does something that is either so cool or so dumb that an uncontrollable urge arises and you smack them.
Evan: "Man, I'm going to throw this pudding at the principal."

Mitch: *Slaps Evan*

Joe: "Evan, that was slap-tastically dumb."
by Riverboy March 17, 2006
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Tooting one's on horn esspecially one's sexual prowess and/or ability to repopulate the world.
I will not dignify the above question with a response... mainly because I don’t have a very good one. Besides I like CrazyWolf. It lets people see the inner me. The artist... if you will. The visionary, the entertainer, the personality, and the raw and undeniable sex appeal.

"That was pretty Slaptastic."
by BahFur March 19, 2007
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Slaptastic: - after you have recieved/given a slap
That was slaptastic!" or "I just got slaptasticated T_T
by Cyther8897 February 25, 2011
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