Top Definition
This is a term that me and my friends refer to when asking if someone has shit stains in their underwear. These are not the lightly browned streaks, but the heavy streaks that look as if someone was using the underwear to help heat up their racing tires at the track.
Damn dude!
You are never going to get laid when you are always testing the tires.
Shit! Please learn to wipe your ass!
by Wun Hung Lo January 11, 2006
5 Words related to Testing the tires

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