Top Definition
A person who doesn't want to downgrade from unlimited gigabytes to having a cap on gigabytes used during their billing cycle.
Girl 1: AT&T is crazy If they think I'm switching from unlimited gigs to having only 2 per month.

Girl 2: Ugh, you're such a gigawhore!
by fm_am June 24, 2010
1 more definition
Any type of software/game that takes up half of your fucking hard-drive space.
Joey: Hey Bill! I just downloaded World of Warcraft for my PC!

Bill: I played that game once, but then I couldn't download anymore porn because the game is such a gigawhore!
by Koolaidrefreshments July 20, 2011

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