Top Definition
One who is ceaselessly spitting old-timer shit on kids about how much better The Day was, usually with a passive-aggressively contentious attitude.
Kate's OG Disease kicked in when she saw how psyched I was for The Black Lips show, and she started ragging on me because there is "no way The Black Lips can be as good as Iggy Pop at the Agora back in '77 during The Idiot tour with David Bowie." I hope OG Disease is added to the DSM-V.
by FHJ March 09, 2008
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