Killin It!

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 20, 2010