shit whiskers 

1) whiskers, such as a moustache or a beard, that are made out of shit particles

2) whiskers or hairs that grow out of a piece of human or animal shit

Henry: Hey Benny, when you get a second, look to your right and check out that guy's disgusting beard.

Benny: Damn Henry, it looks like that guy has been washing his face with his mother's asshole. The dude has a serious collection of shit whiskers huh.
or

"I forgot to pick up my dog's shit while i was walking him yesterday and when i walked by it today, the turd had some serious shit whiskers growing out of it"

shit whiskers by Jesus Prairie Dogg December 31, 2009

Shit Whiskers 

The hairs in your butt crack that always track a little bit of poop when ever take a dump.

I had to thoroughly clean my razor after I shaved my shit whiskers.

Shit Whiskers by Diddle Jack October 5, 2016

shit-wiskers 

long or short clusters of stray pubic hair around the anal opening

shit-wiskers by Al ralphs & Ryan MacKenzie February 16, 2003