A Duncan - Doing A Duncan is when you plan a cool hangout like the movi

Doing A Duncan is when you plan a cool hangout like the movies or a game and then forget to pick up your friend and leave them hanging like a idiot.

I thought we were going to the movies, but you forgot me and I had to walk home.

Planned a game and left my cousin behind like she wasn't even there.

You said we'd meet up but you forgot me and I had to eat alone again.