1) a city somewhere in russia

2) a large and particularly orange forehead
1) go die in omsk

2) woah! look at that omsk!
by omsk lover May 17, 2007
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What drunk people come up with when they try and text 'PMSL'
I've just seen a fat bird in a bikini in Maryhill. OMSK.

or

I'm going to a family wedding but I'm only having a few. OMSK.
by the hippychick April 21, 2011
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a term used to describe a person with an obese piss kink.
ugh! rachel is such an omsk. she won’t stop asking me for a golden shower.
by omsk-master June 27, 2022
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