Top definition
Contraction of omnishambles (noun) or omnishambolic (adjective). A total mess in every way, often used to describe a person's state after heavy inebriation.
"Did you see Emma last night? She drank a dozen vodkas and was a complete omsham."
by Florestan November 09, 2011
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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