When you need new ideas so you can "climax" during masturbation.
My best friend told me she needed some masturbatory inspiration because she got tired of thinking about the same things when she was masturbating. She couldn't "get off" anymore thinking about the same things over and over again.
When someone takes a lot longer than the time they said. A football game consists of four, 15-minute quarters but because the clock stops a lot, the game is a lot longer than 45 minutes. So when someone tells you they'll be 20 minutes, it's 20 minutes football time.
Bob: Jim said he was going to be 20 minutes before he shows up.
Bill: Yeah but, he works in football time so he'll be about 40 minutes.