VPIP

Poker term often used when utilizing poker tracker programs such as Poker Tracker and Holdem Manager. Abbreviation for “Voluntarily put money in pot.” It specifies what percentage of hands a marked cards player puts ‘voluntary’ money into the pot. Voluntary is any use other than the blinds and antes since in these situations it’s a requirement to invest money in the pot. A high VPIP (like -40%) indicates a loose style of play and when combined with a high PFR (preflop raise percentage) usually the player will show aggressive tendencies post flop.
EXAMPLE “Two players at my table had a VPIP of over 45% I didn’t want to leave the game.”