hit rag

Any piece of cloth, usually a towel or cotton shirt, rolled or folded, into which one exhales after taking a hit from a pipe, jibba, bong, etc. The device is useful for preventing excessive accumulation of smoke in closed areas where detection is a threat. Easily recognized by the numerous round and oval stains of varying shades of brown.

Hey bitch, pass that hit rag so we don't get a room full of fuckin smoke in here.