1 definition by got bigcrush but ex in the way

cas is an acronym for Cool As Shit.

(it can be pronounced as it looks w/ a 's' at the end, other accepted pronunctiations are like caz w/ a 'z' sound at the end)

it often refers to people, events, and other items that have the possiblity for being Cool As Shit.

being cas is a prestigious title. use it wisely.
Ex1
Bradley: "Hey man, didn't you hang out with Kelsey this weekend?"

Dustin: "I did dude! And she is defiantly cas. I dont think there is a girl out there that cas."

Ex2
"That movie the hangover is one cas movie. I might just go watch it again"
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