What's the meaning of a "courtesy fuck" in the context of South Park's season 21, episode 5?

Name: What's the meaning of a "courtesy fuck" in the context of South Park's season 21, episode 5?
Uploaded: 2026-05-14T09:55:27.791Z
Duration: 33:39
Description: What's the meaning of a "courtesy fuck" in the context of South Park's season 21, episode 5?