Top definition
the white chalky residue around the lips of a womens vagina after a long night of taking the cock rocket.
I was getting ready to eat her out when I discovered that she had some muff scum left over from the night before.
by patty winland February 15, 2010
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug