What is Killin It?
1.
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"
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2.
To have sex in a hardcore manner.
I walked in on Johny killin it with Kortnee.
3.
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
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