Turn-into-a-pumpkin definition
(idiomatic, colloquial) Used to indicate a curfew, or the time by which one must depart.
My daughter turns into a pumpkin at 10:00, so you need to have her home before then.
I'm turning into a pumpkin at 4:00, so we need to finish this.
"I need to get back now!" "Why? Are you going to turn into a pumpkin?"
verb
Origin of turn-into-a-pumpkin
- From the story of Cinderella, in which the transformed coach reverts to its original state (that of a pumpkin) at midnight.
From Wiktionary