1. jealousy

2. to act out of character because you are jealous

3. to be overwhelmed with jealousy
When Lisa saw her crush with another girl she turned into the green-eyed monster.
by Lisa DiRusso October 01, 2007
Top Definition
jealousy, envy
The green-eyed monster was there when an acquaintance of my friend visited his house and it took a toll on his relationship with his girlfriend.
by The Return of Light Joker June 01, 2011
A term used to describe jealousy.
origin is from Othello
Jan was bitten by the green eyed monster when she saw Jill with David.
by Brian M White November 22, 2007

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