1 definition by exciting6898

Top Definition
To do something on a whim. Most of the time, it's living life in the fast lane, without regret. Sometimes you wake up the next day and wonder why you effin' did that?
Person #1: Let's be spontaneous and go to Alaska. We can build an igloo with our bare hands!

Person #2: Yeah, sounds fun! We can even sleep in it naked without a fireplace!

Overheard person: Are you serious? You'll get frostbite on your penis and it will fall off.

or

Person #1: Hey, I'm bored! Let's go skydiving today!

Person #2: That would b mad fun! I'm so down!
by exciting6898 June 02, 2011

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