brokenswitch
nounUK /ˈbrəʊkən swɪtʃ/
US /ˈbroʊkən swɪtʃ/
A switch that does not work anymore.
The lamp won't turn on because it has a brokenswitch.
OTHER MEANINGS
2. A person who cannot stop changing their mind.
He's such a brokenswitch, he picked a new favorite color three times today.
3. A game or toy that keeps turning off by itself.
The robot toy is a brokenswitch and shuts down every minute.
4. A plan that keeps failing and starting over.
Our treehouse project turned into a brokenswitch, always stopping and restarting.