The name was coined to describe Arnold's (from the show Hey Arnold) grandpa, Phil, when he was a young boy playing chess. The term describes that Phil had nerves of steel. Today it is used to describe another boy named Phil that you all may know.

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.