shaftwack 

simply when a man takes his penis and hits somebody in the face with it

"jon gave me a shaftwack when i was asleep and woke me up"

shaftwack by trevor hackl November 6, 2005

shaftwack 

Dongslap right in the kisser!

Look hes passed out, quickly shaftwack James Prtr (not real name) (yes it is)

shaftwack by Sunders August 31, 2008

shaftwack 

Dongslap right in the kisser!

Look hes passed out, quickly shaftwack James Prtr (not real name)

shaftwack by N.Saunders April 27, 2006

shitwack 

Shitwack, or shitwhack is the Canadian equivalent of shitload. Less than a fuckton, more than an assload, the Canadian shitwack is equal to 1.2 American shitloads

"We got a shitwack of snow last night"

"We need to buy a shitwack of beer for the party"

"There were three metric fucktons of dank here last night, where'd it all go? There's a whole shitwack missing!"

shitwack by DJsunkid December 30, 2005

Shazzwack

Something that just happened, Something crazy!

Dude did you see that accident, it was Shazzwack....Damn that chick is Shazzwack.

Shazzwack by Zahir Islam January 14, 2008

ShaftBack 

When when you flash back to seeing only the shaft of a friend's penis while they are pretending to show the whole penis

I was sitting on the couch when I

had a ShaftBack and remembered my friends penis

ShaftBack by NippleShire September 30, 2017

shattackular 

adj. a performance or product of such extremely poor quality that it results in the loosening of its viewers bowels

Jessica Alba's performance in Good Luck Chuck was shattackular and I was forced to change my pants.

shattackular by Jake Gosselin January 11, 2009