Top definition
The air control room in Among Us. The name comes from O₂, the chemical formula for an oxygen molecule.
It wasn't me; I was in O2.
by Mr. Twinkieface November 20, 2020
3
A combination of orange juice and orange soda, when, used together create a unique flavor and an energizing drink. Also very nutritious.
I was up late at a sleepover the other night, so we made some O2, drank it all up, and good times were had by all
by Kodiak101 May 12, 2008
4
When you can't live without someone, you call them O2 because you can't live without them (like you can't live without oxygen).
by chemistrygirl321 March 09, 2018
5
A bunch of useless cock juggling thunder cunts... that will fuck up your order (or even stop your order)... after wasting your time for up to 2 weeks... with no communication skills what so ever O2 will ruin your day just for the amusement of their staff.
by The Shop Front Boys July 31, 2009