USK

An online, most commonly and instant messanging abreveation for "You Suck" Other closely related words are isk

I can't believe you ditched me at lunch today Robzor, usk!!!

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isk

An online slang term commonly found in instant messaging meaning "I Suck" but not in an orally sexual manner in a screw up kind of way. It is common among American High Schoolers in NYC.

I screwed up that god dam math test on geometric proof so mother f'ing bad, isk so freakin bad Rob.

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