When eating out your partner’s ass, s/he shits on your face. The gay men’s version of getting your Red Wings.
When all my straight buddies were sharing stories about getting their red wings, I chimed in with my story of getting my mud flaps!

Last weekend when I was going hard and heavy eating Ryan’s ass, I suddenly got my mud flaps!
by NOLABeefyGuy September 27, 2017
Get the Mud flaps mug.
Found on a woman with excessive sized vagina lips. The man can also use them as leverage will going down on his woman.
Hey bro, did you hear that Sparky grabbed hard onto B's mud flaps last night?
by KDogg_1979 July 30, 2006
Get the Mud Flaps mug.
Another word for boobs.

Nobody calls them that, except for the mentally insane.
Daniel: Boobs are too funny, tits are too agressive, breasts are too formal, mommy milkers are too overused, melons sound weird, Mud flaps are wait who even calls them that-

A Coomer: Me, I call them that.

Daniel: What the fuck.
by atiredloser July 13, 2021
Get the Mud Flaps mug.
Next, I coated her mud flaps with creme e me, then I passed the fuck out!
Bumpin' uglies leads to inflamed mud flaps
Get the Mud Flaps mug.
Those things behind the wheels a car, so that mud doesn't spatter on the car behind it.
by Politricks November 27, 2003
Get the Mud Flaps mug.
Sagging butt cheeks with age and weight loss such that a pencil could be held in the crack between back upper thigh and bum. Vastly superior to all alternative definitions for the sheer ubiquity of the phenomena but also because legs are the human equivalent to wheels and human mud flaps are therefore perfect homologues to vehicular ones. Entered Urban lexicon in Spinal Tap's hit Big Bottom in which this second chorus appears:
Big bottom, Big bottom
Talk about mud flaps
My gal's got 'em.
Big bottom
Drive me out of my mind.
How can I leave this behind?
by Jellybean Sherbert September 15, 2008
Get the Mud Flaps mug.