failingswitch

noun
UK /ˈfeɪlɪŋ swɪtʃ/
US /ˈfeɪlɪŋ swɪtʃ/

A switch that does not work right.

The lamp would not turn on because the failingswitch was broken.


OTHER MEANINGS

2. A person who gives up easily when things get hard.

He was a failingswitch and quit the game after one mistake.

3. A plan or idea that stops working suddenly.

The team's failingswitch left them without a backup plan.

4. A moment when something changes from success to failure.

The failingswitch came when the power went out during the show.