Top Definition
A yellow, lemon-headed, man-shaped character from adventure time. Lemongrab has anger issues and he sends people to candy dungeon if they don't follow his rules. Lemongrab was created by Princess Bubblegum and he has an identical brother.
Person 1: Have you seen that Lemongrab guy on adventure time?
Person 2: You mean the guy who yells, "Unacceptable!" and "One million years dungeon!"?
Person 1: Yes.
Person 2: Yeah, he's weird, but funny.
by Captain Vince Clortho September 12, 2014

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