let-gobutton
nounUK /ˈlɛt ɡəʊ ˈbʌtən/
US /ˈlɛt ɡoʊ ˈbʌtən/
A button you press to let something go.
Press the let-gobutton to drop the ball.
OTHER MEANINGS
2. A control that stops holding something in place.
The claw machine has a let-gobutton for the prize.
3. A button that sets something free.
She hit the let-gobutton and the bird flew away.
4. A switch that lets a thing fall or move.
The let-gobutton opened the gate.