Verb: Sice is like slice, except for it's sice. Often yelled while playing Call of Duty and using the melee attack to kill an opposing player.

Adjective: used to display great excitment or approval of nearly uncontainable joy.

Related words: throwing sice, shooting sice
Guy #1 kills opposing Call of Duty player with knife attack
Guy #2: Sice!
Guy #1: What does sice mean?
Guy #2: Sice is like slice except for its sice!

Mon, I had Marathon, Lightweight and Commando on and I was sicing guys all night!
by Chemzilla October 26, 2010
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Sicely is a lovely lady with pretty brown hair and is often born in the winter. She is loved very much by her family and friends and usually has 3 siblings. She loves bunny's and she is a very good artist. You should really get to know a Sicely!!
((A person)):"Happy birthday Sicely!!!!!!!!"
by Yaalllllllllsuckkkk January 04, 2020
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To hit or combust upon an object or somebody with supreme force.
My friend siced that guy so hard that his nose fell off.
I siced that blunt up, let's smoke it quick.
by Henry Lebard April 16, 2006
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To conduct a knife attack on an opponent or team mate while playing Call Of Duty.

When your opponent dies from a knife attack you would scream "SICE" into the headset so you team mates would know.

Throwing knives are also sice-worthy.
"Yo guy, I'm about to sice the sniper camping at the top of the hill". as I walk over to his position, i maneuver my way behind him and then, "SICE" !!!
by Modern Warfare 2 player October 25, 2010
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