When a male is peeing while standing, realizes that he has to poop, and transitions to a sitting position to finish off the job before flushing
"Hang on bro, I'll be a few minutes longer. Thought I just had to pee, but going to pop the clutch."
"Aiight bro. Just spray something in there."
Pop the clutch is when someone spends money - "clutch" being a woman's purse.
Daddy said, "Can I take you to the drive-in tonight?"
Then she said, "My direct deposit hasn't even hit, and you already tryin' to pop the clutch?"