The name of the play that Charlie Day writes in the television show It's Always Sunny In Philadelphia. The play is written to try to win over the heart of a waitress played by Mary Elizabeth Ellis. At the end of the play, Charlie confesses that the whole play was about him and proposes to the waitress, only to be rejected. The Night Man Cometh is also the name of the episode.

A portmanteau of carpe diem, a Latin phrase that means “Seize the Day!” and DM, which stands for Direct Messages. This word means seizing the day via DMs.