1/0 

osht I divided by 0!

A: I CAN DIVIDE BY 0! LOOK: 1/0!!!
B: OSHT!!!!!!!!

1/0 by Froobert July 15, 2006

"1-0" 

when a trick is playd on a friend or colleague. if fallen for the result of the trick can b called "1-0" as u r winnin the game u hav introduced ur friend to. this can result in a game due to bordem throughout day or week. this does not need to b used as a game but can b used for comical purposes.

© of lochaber high school 4th yrs

culprits: "no way......" pointing into the open space
victim: "What!!!!"
(laughing) "wayhay....."1-0"....."
victim: "watchout"
(laughing stops) culprits turn round
victim pauses: "1-1"

"1-0" by Dec_92 January 17, 2008

1.0 

When a long awaited program, after months or even years of beta testing and releases, finally gets released as a version 1.0.

"God, I'm so glad that VLC finally 1.0ed"

or

"I can't wait until Boxee 1.0s"

1.0 by mandrig July 29, 2009

1.0 

The first version of something that usually requires an upgrade. A person of lower intelligence or depth. Unintellectual. One who cannot grasp complete reality. A moron.

Sonny is a 1.0. He doesn't know the difference between a hole in the ground and his ass.

1.0 by Bono1.0 January 18, 2017

1-0 

I'm up on you bitch

*Goes into facility*

*Kills someone with an orbital cannon.*

"1-0 lzzzzz I'm up"

1-0 by TheWarHorse100 July 25, 2021

1-0 Lzzz 

A part of a GTA Online tryhard's very limited vocabulary, typically said after getting a single kill (typically with an orbital cannon or jet) and then leaving or hiding in a property.

Loser: 1-0 Lzzz trash forever up
Normal player: Ok?

1-0 Lzzz by noper doodle October 26, 2020

1.0 gpa activities 

When someone doesn’t give a shit about school, and does everything in school except learn.

Jeffrey: Yo man wanna go skip class and hit this vape? Chad: No, 1.0 gpa activities

1.0 gpa activities by OPBABABABA February 18, 2023