Top definition
To do something with the best of your ability; to become a legend in the process or to achieve 1337 status whilst performing the said phrase.
B: Hey YO JOE!! What did you wind up doing last night ?

Joe: YO SON, I WAS KILLIN IT!

B: OHHH SHNAP! THATS WHATS UP MY NINJA!
by FPSTOM January 19, 2010
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Sep 6 Word of the Day
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Damn that was a steezy ass kickflip son!
by niggaliciouszor April 29, 2007
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2
did it very well, you were the best at it,did something extremly good
when I dance I be killin It, I was killin it when I was singin that song
you killed it homie
by Nikki Banks April 25, 2009
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3
1.to be doing something very good

"john was killin it all day long in the competition"

2. to do your own thing, in a sorta funny way
1. "john was killin it all day long in the competition"

2. "max is killin it in his overalls"
by alex July 16, 2004
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6
A way of saying someone is really good at dancing or other active motions
by xXPowaXx September 05, 2011
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