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A tube that is shoved up someone's ass. Liquids are then able to be passed through the tube into the person's anal cavity therefore giving them special sensations.
I shoved that asstube into Alby's ass and then I filled his ass with piss and rocketsauce.
Asstube by speedman225 March 17, 2007
Related Words
fart, buttgas, flatulence, methane melody, ripper, browncloud, poof - also variable for the name Austin.
Sammy smiled and ripped a short but vile asstune as he left the room to go feed the cats.
asstune by Diogio Rome January 9, 2009

Ass Tube 

Word used to describe an asshole when specifically suggesting that the person is the tube-like, shit-covered skin within the anus, rather than the air between it.
That guy just stole my seat! What an ass tube!
Ass Tube by Carton Jones December 21, 2008
A Kate-ism for the size serving of ice cream necessitated by a break up from any ASSTARD or fucktard. FLAVORS include "You Deserve Better" and "College Boyfriend THAT ASS" as well as "Let's Just Be Friends" and "Drakkar Noir." The ASSTUB serving is equivalent to the amount of suffering said ASSHAT has inflicted. Any way you slice it, it's gonna be big.
"Wow, I can't believe I dated that douchetard. I'm going to need to dive into an ASSTUB of ice cream..."
ASSTUB by Mittens Was Here September 15, 2013
Content creator on YouTube targeting non-active males with workout videos where every day is ass day.
Hi i'm a Asstuber, today is leg day, wait, I meant ass day!
Asstuber by HotInTheCity October 13, 2023
Travon has perfect football assture.
assture by jaboolehah September 12, 2003
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026
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