over the edge

Idioms  

1. Insane, as in I think he's gone over the edge. This expression alludes to the edge of sanity. [1920s]

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Example Sentences

Called Agnes here, as she was in her father’s will, she is played by Jessie Buckley in a performance that tips over the edge from heartfelt into cloying, as does the film.

From The Wall Street Journal

My concerns are less about the mobs he can gather, but the individuals he can tip over the edge into attacks on marginalized communities — the rhetoric ties into pre-existing attacks on vulnerable groups, making them part of his broader mythical "Enemy of Real America," and begging people to take matters into their own hands.

From Salon

That could push your fellow travelers over the edge.

From Seattle Times

"Let's keep going," Riley says as she and Ellie stare over the edge of their cliff, and in that second, they're heroes.

From Salon

In one, a man dangles over the edge of an Oklahoma City overpass, his legs swinging in midair as police grab his arms and pull him from the brink.

From Seattle Times

Related Words

• demented
• insane
• mad
• unhinged