Underwear; the cloth one wears on the buttocks.

A square piece of cloth (usually advertising a punk band) that is safety pinned to the back of a dirty, smelly, gutter punk kids pants. Similar to a trucks mud flaps and a loin cloth.

usually a peice of cloth that has been inserted into the anus on a warm day.
b. when string from a towel and or underwear, stays in buttcrack for more than five minutes

A cloth used primarily for butt sneezes. Invented by Germans.

The various stages of not wiping your ass good enough after a shit that breaks off half way.

Stage 1: A simple courtesy wipe will rectify the issue.
Stage 2: You need to get a handful of baby wipes or a durable wash cloth.
Stage 3: Find the closest shower and proceed to clean your ass by letting warm water run down your crack while spreading your ass cheeks apart to dig out the remaining turd.

A piece of cloth attached to the back of your pants or jacket covering the lower portion of your back. Usually screen printed with punk rock logos, insignias, and covered with conical or pyramid studs. Worn by punk rockers of all kinds. Extra bonus points are rewarded if your butt-flap attaches to a studded vest with pyramid or conical studs. The first known sighting of a butt-flap was as ABCNORIO in the lowe east side of New York city in 1989, although it is suspected to have originated in London at an earlier date.

A loincloth. A term used first in George of the Jungle, but most notably in George of the Jungle 2.