1 definition by wackojakko
The term for when a guy gets a girlfriend and immediately becomes desired by other girls. It is a sociological phenomenon involving social status, showing that the man is okay to be desired. He has been approved by a sociological microcosm as a man who would make a good mate. It also involves competition, the guy is almost a prize now, something that can be won in a competition.
Once one piranha bites, they all swarm.
Once one piranha bites, they all swarm.
Single guy walks down hallway, girls barely notice. Guy gets with hottie and now girls can't stay away.
Guy's Friend: Man, the piranha effect worked wonders for him!
Guy's Friend: Man, the piranha effect worked wonders for him!
by wackojakko January 4, 2011