to jump onto or cut apart trees or bushes with your snowboard.
damn, did you just see him shwack that bush. that was sick. My turn!
by hyborian November 28, 2003
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Shwack is another way to say masturbate. My friend is named Shwack because he shwacks a lot.
i shwack two times in the morning, i shwack two times at night. I shwack two times in the afternoon, it makes me feel alright. I shwack two times in time of peice and two in time of war. I shwack to times before i shwack two times and then i shwack two more.
by Shwack September 19, 2005
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a whole shitload, usually used to describe illicit substances....or beer.
Wow! I didn't know you were gonna get a thousand pills. Dude thats a shwack of E man.
by chinesemaster8 July 26, 2006
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Walk up and shwack him!
by Jabber September 29, 2003
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1. (n) The action of slapping someone in the face with one's calve

2. (v) To slap someone in the face with your calve

3. (interjection) The sound made by slapping someone in the face with your calve.
"That wasn't a smack. That was a.. a shwack!"

"If you don't shut up about your weird Wapanese bullshit, I swear I'm going to shwack you!"

"And then there was this load SHWACK as her leg slapped me in the face!"
by That One Snake August 4, 2009
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