5-O

5-O, commonly written as 5’O, 5’0, 5-O, 5-0 is a slang term used by a lookout committing a crime with a group to signal that officers of law enforcement are arriving. It is commonly used by skaters who skate in groups to tell everyone to scatter.

5-O pronounced as five-Oh is the combination of the number 5 and the number zero which throughout time has been pronounced as “oh” (O). It originated from the 1968 police tv show “Hawaii 5-0” where the 5 and 0 represent the fact that Hawaii was the 50th state.

“Shit there’s cops coming”
“5-O 5-O!”
“Run!”

by Danny Despacito June 2, 2020

May 5

The national day you text your crush saying that you love him/her.

Tristan: Hi Emma, it's May 5. Haply birthday!
Emma: Thank You!
Tristan: I have been thinking to tell you about this for a while so here I go. I love you.
Emma: Awww I love you too.

by TAS+EP=Love September 30, 2021

December 5

the day that the best couples get together, and they will always last and will always be there for eachother no matter what

“you gonna ask her out?”
“duh! it’s december 5th!! it’s good :)”

by grace 😎💕 December 2, 2021

5 on a flapjack

A phrase your brother uses to make you want to commit capital fraud and 7 counts of blue collar tax evasion

Hey max, if you slide that would be 5 on a flapjack

by Giggitygoo415 January 23, 2021

oct 5

today is national kick your sibling in the shin day.

kick your sibling say nothing and walk away.

kicks*

"ouch!"
walks away*
"oh yea its oct 5"

by la poo poo caca October 5, 2021

civ 5

Gandhi Nuking Simulator.

In Civ 5, Gandhi nukes you all.

by Verdigris February 10, 2017

5 bob

Refers to the 50 cents coin.

Jonathan: Yoh my bru do you have a 5 bob there i wanna buy chappies
Jackie: Ya here
Jonathan: Awe i promise I'll pay you back

by wtfducc September 14, 2023