Definitions by Effie Saint Profane

Piss-mop 

An unkempt female (or male!) nether region. When the pubic hairs are so long they get in the way of the urine stream and thus collect urine like a mop.

Now that she trimmed her piss-mop, Evilynne doesn't stain her britches.

Piss-mop by Effie Saint Profane August 13, 2012