xkcd's number

An extraordinarily colossal number that is calculated by calling the Ackermann function with Graham's Number as its parameters.

The actual value xkcd's number is unknown as most mathematicians cannot grasp its true form without suffering from PTSD-inducing nightmares.

xkcd's number by Ἀπολλύων September 16, 2016

Alden's Number

This number is the result of an equation done by scientist Voash N. Alden to find the estimated number of pedophiles in a 1.5 kilometer radius.

Using Alden's Equation, I found that Alden's Number is roughly 6.90.

Alden's Number by Senboy123 June 23, 2022

chanel number 2 

When woman sprays perfume after taking a dump in a bathroom. The room ends up smelling like both.

"The bathroom smells like chanel number 2"

chanel number 2 by jcoops July 14, 2023

two number 9's 

Two number 9's originated from Grand Theft Auto: San Andreas in 2004. During Mission 5, "Drive Thru", Carl, Ryder, Sweet, and Smoke go to Cluckin' Bell. Smoke orders two number 9's, a number 9 large, a number 6 with extra dip, two number 45's, one with cheese, and a large soda.

The meme became so popular that it spread all over Youtube and the internet, but nobody knew where it originated from.

two number 9's:

(it's not an inside joke, but i don't know how this would be put in)

Guy 1: Hey, what do you want from Taco Bell?

Guy 2: ILL HAVE TWO NUMBER NINES, A NUMBER NINE LARGE, A NUMBER SIX WITH EXTRA DIP, TWO NUMBER 45's, ONE WITH CHEESE, AND A LARGE SODA.

two number 9's by jigsteal December 31, 2016

complex number 

(MATHEMATICS) a number consisting of a real number and an imaginary number; imaginary numbers are multiples of the square root of -1.

You need a complex number to express the value of an electromagnetic wave function.

complex number by Abu Yahya April 23, 2010

go number two 

To poop.
Mostly used by kids.

- Mom, I gotta go number two.

go number two by SanchoFromRancho September 14, 2013

look out for number 1 

the nonexistent criminal boss fortniters pretend is out there and everybody needs to look out for them or implications of violence are suggested. they don't want to go to jail

Bro i wouldn't talk about him he's in the mob remember look out for number 1

look out for number 1 by SchwarzenMann October 30, 2022