intransitive verb
sometimes used interjectionally with an object (as a personal or reflexive pronoun) to express success after having a good night.
Typically used by a comedian : to celebrate the one (1) good night on stage out of 100 (one hundred) without unfairly or harsh criticism by audience.
1. Jay Ward had the room rocking & "Killed It" on stage tonight.
2. The only place Woody Batilaran "Kills It" is alone with his hand at the end of the night.
3. I once saw Jamie Ward "Kill It" at the Improv but I was really high that night.
by rocked the house, sucessful, February 16, 2014
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Finishing something in an epic way.

Often used to refer to a band making a great performance.
Canadian metalhead 1: Did Three Days Grace kill it last night?
Canadian metalhead 2: They really did! So did Billy Talent and Nickelback!
by chemicalpark November 18, 2015
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Jen: "My dog keeps eating my homework!"
Nick: "Calmly explain the situation to her."
Jen: "No, she'll never believe that! Ugh I hate my dog!"
Nick: "Kill it."
by LL Cool Jen December 15, 2009
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The stongest possible form of marijuana. Usually in the form of buds.
Tre-Fo' let me get some of that Kill-Kill!
by Dillon Shore May 1, 2008
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Used as an answer for someone asking you why you did betray them while you two (or more people) where a Team in a game where playing in teams wasn't an option but you decided to be team anyways, the answer makes reference that, even being a team, at the end of the game, it was still Everyone vs Everyone, and you only used them just to achieve your goals easier via manipulation, trickery, and similar
Guy A: *gets killed by his partner while playing Skywars* DUDE, WHY DID YA KILL ME?
Guy B: because it's KILL OR BE KILLED buddy, and you FELL IN MY TRAP
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Basically how the universes work
Anyone who believes life is not about kill or be killed should do a reality check
by Sir. B August 28, 2021
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