go off (one's) dot

To become crazy or mentally unsound; to become 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 has gone off her dot lately. You must have gone off your dot if you think that's a good idea!

Common Names:

Name	Pronounced	Usage
Jackson	JAK-sən	English
Rosamund	ROZ-ə-mund	English (Rare)
Colombo	-	Italian
Kazue	kah-zoo-e	Japanese
Magdalena	mahg-dah-LE-nah (Polish), mahk-dah-LE-nah (German), MAHG-dah-le-nah (Finnish), mag-da-LAY-na (English)	Polish, German, Dutch, Swedish, Norwegian, Danish, Spanish, Occitan, Slovene, Czech, Bulgarian, Mace
Yuliya	YOO-lee-yah (Russian)	Russian, Ukrainian, Bulgarian