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very nasty remark fired at someone, usually in an exchange of
insults; verbal response to a cutting put down in an argument, but not always seriously; the name of the nastiest insult thrown out as the last word in argument; sarcastic response to a nasty remark
Bill: "You're so conceited you think your sh*t doesn't stink!"

Don: "Ooooooo, deep slash!!
by sparky3 February 08, 2011
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