Definitions by sir poop crumbles

mud crotch 

When a girl wipes back to front and pieces of poo get stuck in her pubes.

I was about to go down on this girl but I realized she had mad mud crotch, so I said, "hell nah, put your pants back on and get the hell out, bitch... unforgivable!".

mud crotch by sir poop crumbles April 27, 2008