let-gokey
nounUK /ˈlɛt ɡəʊ kiː/
US /ˈlɛt ɡoʊ kiː/
A let-gokey is a little key that you press to let something go.
She pressed the let-gokey and the toy car rolled away.
OTHER MEANINGS
2. A small tool that opens a lock so a thing can move.
He used the let-gokey to open the cage door.
3. A button that stops holding something tight.
Press the let-gokey to drop the rope.
4. A pretend key in a game that frees a trapped character.
Find the let-gokey to set the dragon free.