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2 definitions by Shmishews

 
1.
Making a fist and hitting someone in the butt cheek as hard as you can using the palm side of the fist.
"Ouch! That whammy you just gave me is really painful."

"I just gave Melvin a whammy so hard it's going to leave a welt there for a week!"

"What the hell is wrong with you? What possessed you to give me a whammy just now?"

"WHAMMY!"
by Shmishews February 27, 2009
 
2.
Playfully grabbing a man's crotch, and then running away. "Skronk" is meant to be onomatopoeic.
"Dude, you just skronked me! That was really awkward."

"Gross. Why would you skronk me? Do you like me or something?"
by Shmishews February 27, 2009