Dirty Muff 

when you haven't shaven or cleaned your vagina for a while and its dirty.

i have a dirty muff, havent shaven my vagina in a while
needs a wash.

Dirty Muff by i ily you September 28, 2008

Go south on a dirty muff 

When things just get really bad...

I was talking to a 10, when her 1.5 of a friend came over and cockblocked me...from there things would pretty much go south on a dirty muff...

Go south on a dirty muff by SELNC January 20, 2020

Big Dirty Muffin 

A muffin that is big, but also dirty.

Oprah's snack table was full of Big Dirty Muffins.

Big Dirty Muffin by Gentleman, and a Scholar. December 15, 2010

DIRTY MUFFRIDER 

ONE WHO IS A RIDER OF STACEYS DIRTY MUFF

LOOK AT SHANE E(AKA SHAWN) HE IS THE ULTIMATE DIRTY MUFFRIDER

DIRTY MUFFRIDER by staceyandshawnhavegotitgoinon January 10, 2011

dirty muffler

When after engaging a girl in anal sex, she proceeds to spray diarrhea all over you. It is actually a mix of semen and feces which has an odor similar to very old muffler grease.

I was butt-fucking Pamela after she ate 3 steak soft tacos. Right when I thought things were cool, she blew her dirty muffler all over my cheast. I'll never eat mexican food before sex again.

dirty muffler by EJL Supreme May 16, 2006

dirty muffin 

During anal intercourse, the male will remove his penis and reinsert it in the girl's vagina. The feces on his penis are transferred to the girls vagina creating a dirty muffin.

Last night, I was giving it to her in the ass, then before I blew my load I stuck it in her puss. By the time I was done she had one dirty muffin.

dirty muffin by Sammy Cayman July 24, 2005

Dirty Muffin 

During intercourse, when a woman defecates on a man's scrotum after anal sex; Therefore turning his testicles into a feces flavored snack.

The old man's dirty muffin was devoured by the crack whore.

Dirty Muffin by Allen Schmidt August 2, 2004