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A slow single chortle one makes to express approval or to acknowledge impressiveness. Is usually accompanied by a subtle head nod.
camjoo,"I just mounted some remote controllers to the PS2 mp3 player in my car! Looks schweet!"
M4rK,"Ogn!"
by camjoo April 25, 2005
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4
Abbreviation for "Oh God No". Used during IM or social media sites.
Guy 1: They're bringing Furbies back.

Guy 2: OGN, I had enough nightmares as a kid.
by MagicalAwesomenessIsMagical August 17, 2012
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