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1.
A term to describe when your having anal sex with either a man or woman and he/she accidentally/purposefully defecates all over your balls.
Damn man I was fucking this slut in the ass last night and she totally put some mud on the tires!.
by AnalAdventures June 03, 2009

Words related to Mud on the tires

anal ass desperate mary mud shit skank tires virgin whore
 
2.
When a girl wants to lose her virginity.

Also referred to as "getting your tires dirty" or "getting dirt on those tires"
Person 1: Girl, you better get some mud on those tires tonight!
Person 2: I'm trying!!

or

I better get my tires dirty tonight, or I'll be super upset!

Girl 1: Mud on the tires?
Girl 2: YES!! I got my tires really muddy!!
by wildcats12 March 04, 2009