nicotine stains 

same as skidmarks

After a long day of cuttin the cheese my fruit of the looms got nicotine stains.

nicotine stains by Anonymous April 14, 2006

nicotine stains 

Fartstains. Skidmarks. Cooney Gravy. Poop stains in your underwear.

My ol man smokes cigarettes and blows the smoke out his arse. He has nicotine stains in his drawers.

nicotine stains by Bumkicker Slade April 14, 2006

Nicotine Stain 

Brownish/Greenish stain made by fecal matter usually made by dingleberries rubbing against the tightie whities my father wears.

"Dad,why is your underwear brown?" "That, dear daughter, is a nicotine stain"

Nicotine Stain by ashley November 16, 2003