Top Definition
One syllable, abbreviation for casual. Phonetically pronounced as you would "casual" except without the "yoo-ull" part. Used in the context of making sure something is abide-able, see context example below....

Synonyms: okay, cool, allowable
"Hey is it cas (cah-szh) if my friends come?" , "it's totally cas (cah-szh) man no worries " , "is it cas(cah-szh) if I swing by with some beers?"
by Rezzination January 12, 2014

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