Top Definition
The act of intentionally tricking someone into believing something that will end up making them look like a total idiot.
Person 1: Hey, they took out the word 'gullible' from the dictionary.
Person 2: What?! Wait really?
Person 1: Nope!
Person 2: You are such a Gullibully!
by JONNN!!! April 14, 2010

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