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Also known as "plain" or "okay" irl. Basically, you know how everyone in any language textbook usually looks like they're missing a chromosome or something? Well if you're textbook sexy then you're not fugly, you're just... meh. Plain. Average.
Guy 1: Hey, that girl over there's totally making me jizz!
Guy 2: Dude, you should keep that thing under control- she's only textbook sexy.

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Girl 1: Aw man, I wonder why I didn't win the beauty contest!
Girl 2: It's because you're textbook sexy.
Girl 1: -sigh- MLIA.
by HelloAndromeda November 02, 2009
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