The measure of a man's willingness to fuck a representative sample of women in the right hole. OBV, VPIP increases with alcohol or certain drugs consumption. A very high VPIP is indicative of low standards.
The VPIP derivates from the online poker statistics VP$IP (voluntary put $ into pot) and pretty much known only by online poker players for this reason.
1. lolwut? you got 60% VPIP?!
2. Do you think Dario Minieri has a VPIP at all??