A used condom hanging out of your ass.
John woke up with a rattail, bag of ice, and a snickers bar with a note from the boys at N'Sync
a rather nappy type of mullet carefully trimed so that the hair in the middle at the base of the skull forms a single, disturbingly long, strand resembling that of a rat's tail; often spotted on young ratty looking children whose parents don't know any better than to get them a decent haircut
That redneck over there has a nasty rat tail.
Woah, check out the rat tail at three o'clock.
fashionable hairstyle of the late 80s and early 90s, cousin to the mullet; a tiny ponytail in center of neck, typically tied with a rubber band and worn with short sleeved t-shirt.
My parents are complete bastards, and showed my girlfriend pictures of me as a kid with a rat tail haircut.
A towel, carefully folded and rolled so as to enhance its use as a whip-like weapon. For maximum effect, the tip should also be dipped in water.
I made a wicked rat tail out of my beach towel the other day. You should have seen the welt it left on Kevin's leg.
a braided single lock of hair of the back of the head of a guy
"Man, look how big his rattail is."
That snake looking thing that hangs on the back of a shaved kids head, usually stemming from gangster parent's or brown lip liner wearing mothers. Rat-Tail may further be used as a name that represents whoever sports it. A patch of hair that for some odd reasons signifies god knows what while the bald part is covered with a panty hoe or doo-rag!!! Originated in L.A. usually in hispanics and has viciously infected young children's schools across the nation. These kids are known for bullying and cursing in class.
A fight broke out in class, that lil rat-tail stood up and told the teacher off.
When a girl sags her pants so low you can see the top of her thong, aka underwear that has a string in the back for your asscrack.
Usually happens to girls in junior high who think showing their big-girl underwear makes them cool and attractive.
"My god, that girl has a major rat tail."