Top Definition
When there isn't any toilet paper in the restroom you've just pooped in, and you have to make a dash with poop on your asshole to another one.
Corissa: Why are you out of breath, and, by Jove, what is that smell?!

Kevin: Sorry babe, I'm on a Mud Run.
Por TheRipper19496 25 de junio de 2015
When a man, gay or otherwise, has anal sex with at least 3 or 4 other men throughout the same day and night. Girls can be count as part of the mud run, but the one making the run is always a guy.
Guy 1: You guys wanna come over this weekend for a BBQ, some drinks and then maybe a mud run.

Guy 2: Ah, yeah, that could be fun. I've never done a mud run before.

Guy 1: You don't know what you're missing. You can even bring a couple of girls along, just not too many.
Por small mammal 13 de mayo de 2013

Correo diario gratis.

Escribe tu dirección de email abajo para recibir nuestra Palabra Urbana del Día gratuita cada mañana

Los emails se envían desde Nunca te enviaremos spam.