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when you're doing something you're not supposed to be doing and someone yells 5'0 that means they're giving you a warning because you're going to get caught
say you're looking through the teachers drawer and your friend is on the look out and see's your teacher coming, he/she will yell 5'O so you can be warned and pretend like you're innocent
by SSSSS333 January 18, 2009
by kdawg47 May 16, 2010
Acronym for "Orange Testicle". Mentioned on the Propellerhead forum as possible name for a new software synth. A sack of fun!
by edx500 July 28, 2011
"I'm done with all the drama right now. I can't be on social media anymore. I'm going O/G for a while."
by AnonyMouseKittyPie January 12, 2020
A 2 liter soda bottle with a hole burnt into the bottom and filled with smoke used to create smoke rings by blowing into the burnt hole.
the O-Zooka is awesome
by cloud89 August 16, 2009