drive (one) over the edge(redirected from drive someone over the edge)
drive (one) over the edge
1. To cause someone to commit to doing something they had been considering or close to doing for a while before. I tried to remain silent about my father's associations with the extremist group, but the events over the weekend have driven me over the edge.
2. To cause someone to suffer a mental breakdown. Following on the heels of her recent divorce, the death of her father drove Kate over the edge.