nervous breakdown, n.All

A Nervous breakdown is the slipping of a fan belt.

A Nervous breakdown is a malfunction known to occur in higher primates who agonize endlessly over mental abstractions, when they should be out picking bananas and frolicking in the trees.

A Nervous breakdown is the snapping of a rubber band.

A Nervous breakdown is the overwinding of a wristwatch.

A Nervous breakdown is the unraveling of a yo-yo.