Pentium 4

a slow ass processor from the early 2000s that thermal throttles wayyy too much

some guy: "i have a pentium 4"
me: "wow that must suck"

number 4

To die.

To get ravaged.

Why is he crying? Should we help him?
Nah he's a bigot. His dad pulled a number 4.

1-5/4-5

A 1-5 is a code name for a male that's affiliated with the street gang, the "15 Block Gangsters". A 4-5 is a code name for a female that's affiliated with the "15 Block Gangsters". The 4-5 comes from their call to greet each other saying, "1-5 1-5, 4-5 4-5".

1-5/4-5:
Yeah that's my lil 1-5
That swaty over there, she my 4-5

Girls who hold 4 fingers up

are the type to kill you when you breathe near another girl.
the type to only care about you and no other man.
the type to be horny as hell but can play it cool.

Girls who hold 4 fingers up-toxic

“he shook her hand and she killed him and her”

4/22

4/22 is officially known as "420, number 2" OR "The second coming of 4/20". It is nationally recognized as the "2nd" day of 4/20.

Degenerate: "Man, I wish it was 4/20 again."
Respondent: "Bro, why? Don’t you know today is 4/22!?

1!¡2"@3#£4¤$5%€6&7/{8[9)]0=}+?\´`±qwertyuiop¨`~asdfghjkl'*<>|zxcvbnm,.:-_

Do your work

im so bored i wrote 1!¡2"@3#£4¤$5%€6&7/{89)0=}+?\´`±qwertyuiop¨`~asdfghjkl'*<>|zxcvbnm,.:-_ in urban dictionary

shoe size 4

It's a term intended to make men insecure, or target a man's insecurities. It has no real meaning, but tends to offend people regardless.

"You seem like the type of person to have a shoe size 4. No offense."