Top definition
The phrase shouted when high fiving, usually without warning, to a member of the female sex, (generally) by high fiving the breast instead of the palm. Also called "tit five"
Person A: Have you seen Fight Club?
Person B: Hellz yeah that movie owns!
Person A: Boob Five!
by s.gr(uber) July 01, 2008
Get the mug
Get a boob five mug for your cat Vivek.