Bill and David are out and about. Bill notices that David is a bit pissy during the evening, so he finally brings it up.

"Yo, man, you've been cranky all damned day. What the hell is wrong with you. You're acting like you've got PMS."

"Naw, I don't have PMS, but I definitely think I'm suffering from the male counterpart. I call it SRS."

"SRS? What's that?"

"Sperm Retention Syndrome."