Phrases & IdiomsIdiom guide

Tongue in Cheek

“Tongue in cheek” signals humorous or ironic intent behind language that can appear serious on the surface. Cambridge records both the idiomatic meaning and the adjective form, which gives writers a clear punctuation and tone boundary.

Quick answer

“Tongue in cheek” describes a remark or style that is intended jokingly even though it may sound serious. Before a noun, the adjective is commonly hyphenated: “a tongue-in-cheek comment.”

Key details

Canonical FormTongue in Cheek
Core Meaningintended as a joke even though it may appear serious
Modifier Formtongue-in-cheek before a noun
Tonehumorous or ironic

Further guidance

History Boundary

This guide makes no unsupported coinage or first-use claim; it publishes the supported current meaning and usage boundary.

Meaning

Use the expression when the speaker or writer is not meant to be taken fully literally: “Her proposal was tongue in cheek.” Before a noun, “tongue-in-cheek” works as a compound modifier.

Usage Boundary

Do not use it as a synonym for every kind of sarcasm or dishonesty. Its core function is joking or non-serious intent presented with an outwardly serious surface.

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. tongue in cheek — Cambridge Dictionary (opens in a new tab)Cambridge University Press & Assessment · Current meaning of tongue in cheek for language intended as a joke while appearing serious

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