Top Definition
when u get high without actually smoking summing. The state i just happen to be in all the time. Also called haaapyyy (spoken in true chipmunk style)
person 1: oi was wrong wif u, u is high and we havent smoked since yesterday!!
person 2: i dunno ngeeheeeghihi i must be high on oxygen. ure head looks like a pumpkin
by ASGJKS June 29, 2004
1 Word related to high on oxygen

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