musty muff 

A womans crotchal region that exudes a dank, mildewey odor. Can usually be remedied by showering with soap, or deusching.

John: "So how did it go last night with Karen?"
Jimmy: "All good till we made it to the bedroom. She barely got her pants off before I caught a wiff of her musty muff."

musty muff by jeffrotull87 April 11, 2012

musky muff 

muff that has a pungent odor, synonymous with dumpster muff.

My Ex-Box had a musky muff; I nearly lost my dinner.

musky muff by Shawny April 16, 2007

Muff Must 

A musky and/or sweaty odor (much like armpit B.O.) eminating from the hair in the pubic area. This problem can be eliminated with extreme amounts of Soap, Shaving, and/or Deodorant.

I was with Jan last night, she had some serious muff must!

Muff Must by Ceergee January 2, 2007