push over the edge

push/drive somebody over the edge

(informal)

if an unpleasant event pushes someone over the edge, it makes them start to behave in a crazy way She had been driven over the edge by the separation from her husband.

Common Names:

Name	Pronounced	Usage
Aleksandra	ah-lyek-SAHN-drah (Russian), ah-leek-SAHN-drah (Russian), ahl-ek-SAHN-drah (Polish)	Russian, Ukrainian, Polish, Serbian, Bulgarian, Slovene, Croatian, Macedonian, Estonian
Lagina	-	African American (Rare)
Chuldah	-	Biblical Hebrew
Meirion	-	Welsh
Moe (2)	mo-e	Japanese
Audamar	-	Ancient Germanic