be off (one's) dot

To be crazy or mentally unsound; to be extremely foolish or foolhardy. I'm going to go off my dot if I have to hear that blasted song once more! I think Jane's grandmother is a little off her dot these days. You must be off your dot if you think that's a good idea!

Common Names:

Name	Pronounced	Usage
Santino	sahn-TEE-no	Italian
Aylen	['eilən]
Sagit	-	Hebrew
Small	[smɔ:l]
Avinash	-	Indian, Hindi, Marathi, Telugu, Kannada
Barlow	['ba:ləu]