Cockney rhyming slang for yid, an offensive name for a Jew. In cockney rhyming slang, you only say the first part, while the second is implied. Saying cotton removes the taboo of calling someone a yid, and lessens the blow. See also four by two
"Are you a bloody cotton?!"

"So I go there, and the damn room is filled with cotton and skids."
by stupid_username March 30, 2014
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