While having sex with a girl just before you're about to come you run to the girls purse and release the ejaculate into it while simultaneously shouting "Payday!"
Dave, "Hey man I heard you were hanging out with Krissie last night." Curtis, "Yeah dude it was her Payday for sure."
Jeff, "Man, I gave Sara the biggest Payday last night!" Dave, "Damn she's probably never going to call your ass again"