pool jumping 

The act of going into other peoples yard/property to go jump into their pool without their permission or them knowing to just swim or get wet on a really hot day.

David: Hey lets go pool jumping.
Pedro: Ight I'm down, but we gotta go pick up Jose cuz he knows where all the best pools are at.

pool jumping by pOOljUmpErz June 19, 2011

Pool Jumping 

The act of using your neighbors pool when they're not home.

You wanna go pool jumping?" "Hell yeah!" "You wanna go skinny dipping?" "Um..." "Never mind, we'll just go pool jumping." "Cool beans.

Pool Jumping by Johnny Stryker February 21, 2011