1 definition by doublerdiner

Top Definition
A water balloon with a rock inside it. Typically used by drunks, frat boys, date rapists and drunken frat boy date rapists. Or the mentally retarded. People who throw black hearts are typically murdered by their targets.
Man: "Those shit-headed frat boys threw a black heart at my windshield and so that is why I cut their testicles off and stabbed them to death."

Officer: "Oh! A black heart? That's understandable then. You're free to go."
by doublerdiner July 29, 2010

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×