push (one) over the edge(redirected from push one over the edge)
push (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 pushed 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 pushed Kate over the edge.