Definition - A commonplace and overused expression.

Example -
When the going gets tough, the tough get going.

Etymology -
The term derives from the French cliché, printer's jargon for a metal stereotype that was used for printing.
Note: During the early days of printing when letters were set individually, it was more efficient to cast a phrase that was used over and again as one piece of metal. That constantly reused piece of metal was called a cliché.

Oxford English Dictionary -
Its first citation is from 1892:
"They have the hatred of clichés and commonplace, of the outworn phrase, of clashing consonants."
(A. Lang in Longman's Mag. Dec. 217 )

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