likelyness of an explosion of randomness measured on a 1-5 scale, rarely harmful, highly funny.
1- wall flower
2- tells a joke occasionally(rarely funny)
3- makes jokes at other people
4- always has own ideas and ability to improvise well
5- all of above, never embarresed and up for anything
Guy1 - "Man, why is jake always so unpredictable and funny."
Guy2 - "Because his spontaneacity level is off the charts."