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1.
Someone who works WAY harder than everyone else.
Jane: Hey Nance, are you finished with all your work?
Nancy: Yeah, but I'm going to start tomorrow's work so I can be ahead of everything.

Jane: Oh my god, you're such a woker.
by whatsamatterwityou May 08, 2011
 
2.
A person who can't decide between a wannabe and a rocker.
Hilary Duff is SUCH a woker!
by Katine January 04, 2006