be off the rails

1. To be in a state of chaos, dysfunction, or disorder. Our project has been off the rails ever since the manager up and quit last month.

2. To be crazy, eccentric, or mentally unhinged. I think you should cut back on your drinking—you were totally off the rails last night!

Name	Pronounced	Usage
Nefertiti	nef-ər-TEE-tee (English)	Ancient Egyptian
Ata (1)	-	Turkish
Glendower	-	Welsh
Sheila	['ʃi:lə]
Don	[dɔn]
Bogdan	BAWG-dahn (Polish), BOG-dahn (Serbian, Croatian), bog-DAHN (Romanian)	Polish, Russian, Slovene, Bulgarian, Serbian, Croatian, Macedonian, Romanian, Medieval Slavic