doomedswitch
nounUK /ˈduːmd.swɪtʃ/
US /ˈduːmd.swɪtʃ/
A doomedswitch is a switch that is sure to break or fail.
The old lamp's doomedswitch finally snapped when I flipped it.
OTHER MEANINGS
2. A switch that is destined to cause trouble when pressed.
Everyone avoided the doomedswitch on the control panel.
3. A person who always seems to make things go wrong.
My cousin is a real doomedswitch at every party.
4. A final, irreversible choice that cannot be undone.
Signing the contract was the doomedswitch for their friendship.