Top definition
The act of playing World of Warcraft while simultaneously instant messaging, commenting on statuses, poking people, commenting on pics and/or playing Farmville on Facebook.
IM on FB:

Me: Tara are you WoWbooking again?

Tara: well I AM on but not paying attention to it. (lies!)
Me: You ARE WoWbooking :P
Tara: I suppose
by todbot January 18, 2010
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Jul 29 Word of the Day
Someone who used to be a potential girlfriend/boyfriend, but no longer is.
Tim: Zack, is that your exgirlfriend?
Zack: No, she's an expotential. We never actually dated...
by brownsuite September 24, 2011
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