Top Definition
One who smokes a lot of pot.
Get a life, you 420 geek, and stop smoking up.
by Colby February 10, 2004
1 more definition
fan of the best band in the world!!!!!!
also:
a member of the official lucky boys confusion fan club
"he says cockboy's caddy ain't starting for a week/ so i'm gonna get a ride with a 420 geek."
by not_about_debra December 02, 2003

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