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long island tail 

When he's grinding up on you and you reach back to size up his dick
"Man I don't know know if I should sleep with him, what if he's too small?"
"Dude just do the long island tail and go from there"

Long Rat Tail 

A Long Rat Tail is a hairstyle that is primarily on a male person, mostly boys that refuses to cut the middle part of the back of his hair, especially grade school boys or young teenagers.
it is a rather good looking hairstyle if you have the right type of hair like straight, wavy or semi curly (not real curly) and color of hair, blonde, dirty blonde, strawberry blonde or any florescent color. He might keep it trimmed a certain length or grow it as long as he wants. The length might be a little bit of a stub or grow down his back a bit or even grow as long being past the waist line. Most boys would keep it around one side of his neck letting it hang down in front, some just like it down his back, some keep it tucked inside his shirt, some has his tail against his neck that was caught inside the collar of his shirt or jacket or hoodie.
Rat Tail
That boy grew the most awesome long rat tail that's all the way down his back to his waist line.

longtail 

A drug belonging to the benzodiazepine class of sedatives with an exceptionally long biological half-life. Powerful members include clonazepam and flurazepam. They are capable of rendering grown men incapicitated for days.
"Shit doze longtails weely nice, I'm still chuzzed (see chuzzle)"
longtail by Dr Fur March 18, 2004

Longtail 

A person or persons that seek the termination of anothers profile on a social networking website through the usage of the help and safety tool.
TheSuperDug: dave i reported all your comments rofl

TheBigfishcatcher01: ye longtail ye
Longtail by theuser1234 April 10, 2011
Longtails is the craziest loveable thing you'll ever meet. You'll most likely find him in a welly humid terrain. He can be the best tiny little lizard you'll ever find. He is the cutest little lizard. He sadly has died and you cannot find him.
"Have you heard of longtails' death?
"He was so cute!"
longtails by Lizard lover February 9, 2021

longtail 

Noun - Manx English.

Comes from a taboo on the Isle of Man where it is extremely bad luck to say the word "rat".
Manxman: I saw a bunch of longtails stuck together on the subway.

New Yorker: You wha...?

Manxman: Longtails, the hairy ones. The fat hairy ones.
longtail by chlevy November 30, 2024
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
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