A word meaing to hit or be hit. Any kind clumsy and possibly painful contact with anything.
Kyle scacked himself on the wall trying to do a ninja flip.

Josh scacked Kyle for spilling his water.
by Josh and Kyle July 4, 2005
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Scack is a friendly punch to the shoulder, possibly inflicting minor pain, but not done in malice. It can also be a congratulatory hard slap to the back for something well done, but it's not just a light pat. Scack can be used as a verb or a noun.
"Dude, that's awesome!" Bill exclaimed with a grin as he scacked Tom hard in the shoulder.
by MR_22 January 27, 2017
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Literally the hottest ship ever!!!!!
Omg I totally ship scack!!! Like they are legit married already!
by Noodle scack May 22, 2018
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