an obscure euphemism for, like, a really fucking critical moment. as in, if someone says "you'll know when" well when you have twenty minutes of oxygen left is prolly a pretty good indication of "when."
"yeah, so when i only had twenty minutes of oxygen left I figured it was pretty clutch and remembered when my future self said "youll know when" and figured it was pretty much when, so i wnt for it."
by thanethedane August 22, 2008
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"Alex, go commit oxygen not reaching lungs."
Alex proceeded to commit suicide.
by OoferMan November 05, 2018
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a clever way of spelling 'fuck you' only big brain people understand. gets past the roblox chat filter.

fluorine = F
uranium = U
carbon = C
potassium = K

yttrium = Y
oxygen = O
uranium = U
fluorine uranium carbon potassium yttrium oxygen uranium!
by therealloganpaul August 05, 2019
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