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.
See also: edge, push

Common Names:

NameGenderPronouncedUsage
Harlan['ha:lən]
Lucilleloo-SEELFrench, English
Hans[hænz]
Marinda-English
ViliVEE-lee (Finnish)Hungarian, Slovene, Finnish
Eirwen-Welsh