1 definition by FruitoftheLoomis
Noun: A slightly more extreme variation on the childish prank known as the wet willy. Instead of inserting a finger into your mouth and then into someone's ear with a twisting motion, you first insert your finger into your anus, then into the recipient's mouth. Twisting is optional.
"-Why did Suzie leave school early today?
-Johnny gave her a dirty willy and she threw up...
-HAHAHA sucks for her."
-Johnny gave her a dirty willy and she threw up...
-HAHAHA sucks for her."
by FruitoftheLoomis October 15, 2010