Parents mostly say it but friends do to. Is the action to disappoint a parent or your friend.
parent: I’m not mad, I’m just disappointed.

child: why did you have to pull the disappointment card on me, mother.
by not goated lmao September 9, 2019
Get the disappointment card mug.
Opening a birthday card in hope of recieving a large amount of money, but all you get is a birthday card.
Disappoint-day card = Disappointing birthday card
Boy 1: Dude, did you get the $60 from your grandparents for that new game in your birthday card?

Birthday boy: No, all i got was a disappoint-day card.
by Dcom001 May 1, 2011
Get the disappoint-day card mug.