1 definition by Gurren Lagann Squad

Short for deredere (デレデレ), the counterpart of tsuntsun (ツンツン). Usually, but not always in reference to anime or manga.

1. Exhausted.
2. Lovestruck.
3. When a person becomes spoony in front of his/her lover
Person 1: My friend used to hate playing MMOs, but recently they've been drawing him in again.
Person 2: He's so dere.
by Gurren Lagann Squad July 15, 2010
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