1) A towel used for wiping up messes such as puke, beer, milk, bong water, and when theres no toilet paper it is used to wipe your anus after defication.
2) The person who used the towel to wipe their shit when they were drunk as fuck and there was no toilet paper. Esp. a person whose name is Chantelle.
Dude, pass the shit towel, I spilled the rum.
jessika: "someone shit on my towel"
morgan: "wasn't me"
aj: "wasn't me"
jessika: "it must've been chantelle"
morgan: "yeah, she took a shit last night and there was no toilet paper"
An article of clothing, typically a sock, used to wipe ones ass after deficating and finding out there is no toilet paper.
I could not find any toliet paper so i took off my shoe and used my sock as a shit towel.
A towel used for drying things other than the body. Typically the things soaked up are disgusting (ie: beer, bong water, ass-sweat, puke, etc.) A towel is no longer considered a shit towel once it has been cleansed of filth.
"Don't put that shit towel on me! I saw it lying on your floor for the last two months. It used to be white!"