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Pronounced "Tire-re-ah": A large chuck of dirty ice that has frozen inside the wheel well of your car after a drive through snow or slush. Eventually dropping off like a large turd in your driveway or the street.

Coined in 1987 by a contest caller to WHYN-AM radio in Springfield Mass.
I cant turn my front wheels!

Kick that lump of tirerrhea out of there, ya moron.
by Al Peterson January 18, 2008
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