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
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.
Person #1: Hey, I'm bored! Let's go skydiving
Person #2: That would b mad
fun! I'm so down!