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5. shwack
A newbie whose presence has no purpose.
Regular hoodlum: Johnnie's such a shwack!
1. shwack
to take a 3 to 10 second chug of hard liquor straight from the bottle in order to get significantly drunk extremely quickly.

less than three seconds is NOT a shwack.
dude, i remember taking a ten second shwack... and nothing else.
2. Shwack
When a someone jack's you off and sucks your dick at the same time
This hot chick shwacked on mines
3. Shwack
Sh-whack
Similar to FUBAR or clusterfuck but is for when you have to be quiet.
AKA: Doing a test your probably gonna fail.
"The final is today class, it is worth 300 points"" Teacher

"Shwack"- Me
4. shwack
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 Nov 27, 2003 share this add a video
6. shwack
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.
7. Shwack
White crust located in the corners of a mouth. Sometimes due to thirst or cottonmouth.
Matt: Yo dude, you got some shwack on your mouth.
Eric: Oh shit (wipes mouth) Thanks!