What does It is the green ey'd monster mean?

The phrase "the green-eyed monster" refers to jealousy and envy, often personified as a creature that consumes individuals with these emotions. It originates from Shakespeare's play "Othello," where jealousy is depicted as a destructive force that can lead to irrational behavior and tragic outcomes. The imagery of "green" is commonly associated with envy, highlighting the negative impact such feelings can have on relationships and one's psyche.