Top definition
(N) The dopest of the dopest, usually a stoner. An Ill cat is THE man and who is a bro beyond belief. He's chill, usually high, but mostly a super cool dude. He also usually has a pretty sick name like Marcus.
Dude did you hear what Marcus did last night?

Ya man, he's a fuckin ill cat.
by bligadaga May 15, 2011
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug