to take a dump; drop a deuce; pinch a loaf; drop the Cosby kids off at the pool.
Man, did I ever stain the porcelain when I woke up this morning!
An insult used to describe someone who has just done something particularly stupid. It comes from the markings left behind in a womans underwear following some desrciption of vaginal discharge.
Jim: Oh dear, I have appeared to drop my pen.
Bob: God Jim, you're such a twat stain.
a stain left in someones tighty whiteys after they shit themselves
These here undy pants we found in the locker room have a MAD ASS skid stain on em
Food stains on the clothes or face.
You have yum stains on your face! Dry Milk
A stain left by semen on bed sheets, sofas, carpet, etc.
Nick had sex with Kelsey last night and left a noticeable white stain on the living room carpet.
The residual shit stain that cannot be removed from one's underpants.
After several washes Dave's long poo stain remained apparent on his titey whiteys.
A person who is a complete and uter twat!!
"Fuck u bill, your such a fucking wank stain!"