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1. I'M KILLING IT!
performing at the highest level; ripping; mostly associated with the american drifting motorsport or can just be a decal that is put on the winshield of your car.
Guy 1: You see that guys 240?
Guy 2: Yea what about it?
Guy 1: It says I'M KILLING IT! on his winshield.
Guy 2: ohh what a faggot...
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