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1. Declaring the state of being "On".

2. A phrase coming from the greatest TV series in the galaxy: "South Park".

3. pneumonoultramicroscopic - silicovolcanoconiosis.
It's on you pig scraping, rectal gut, lolly-gagging, apple husking, sour-dust snorting, tick biting, family guy watching avacado hand roll.
When one male puts his excretion on his penis and rubs the liquid over the tip of his penis to the ballsack and lubricates the genitals thoroughly, the point of masturbation has commenced to which there is no turning back.
As I went on that girls Instagram account and saw all of her nudes, i spit on my dick and started jerking off. I knew it's on and had the most longest masturbation and dry est mouth of my life
It's on by Dsel123 May 8, 2014
a closure synonym:bye, c u l8ter, etc. (only raw people say this)
I'm bout to go, it's on yall!
it's on by #1ThirstBall February 2, 2005

It’s on sight 

A phrase you use to tell a person once you see them no word will be spoken, but hands will be thrown
I swear if she keep talking crap about me, it’s on sight
It’s on sight by Dark_KÍng March 8, 2020

it's on me 

This means that the person speaking will pay the whole amount, used typically when something purchased is shared between two or more people - such as a resturant meal.
Dinner was $40 - here is my $20.
No, keep your money, it's on me.
it's on me by Anonnny March 4, 2008

It's on like Alderaan 

A star wars fans way to express "it's on". Same meaning as "it's on like donkey kong". Just relates to star wars instead.
Luke: Are you going to the screening of the next "insert George Lucas next star wars movie here"?

Sith Lord: O yea, it's on like Alderaan!
More from Urban Dictionary
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
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