A shambam is the product of dating ambiguity. When a man believes he's in a relationship with a woman, but has not yet consummated said relationship by rounding second base, then a shambam may occur. Typically, a shambam will involve a club night, where the man will accompany the woman to a venue believing they will leave together. But the woman, believing herself to be unattached, hooks up with another guy and spends the night with him. For our unlucky bachelor, a shambam has occurred.
Mark hooked up with Iris? But I thought she was with Jordan? I guess it was just a shambam.

You mean she slept with Dan? But she went out with Adam last night. I guess she really shambammed him.
by A.C. Gonshor August 08, 2007
When you win an argument, Or get one over on someone.
Eg. "Dude, she just totally shambammed you!"
by Ellz202 April 24, 2007

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.

Ă—