IdiomAnimalsFrench

S'entendre comme larrons en foire

Meaning: To be thick as thieves; to understand one another perfectly.

Literally: To get on like thieves at a fair

Example: “Mes deux fils s'entendent comme larrons en foire quand il s'agit de bêtises.” — My two sons are thick as thieves when it comes to mischief.

English equivalent: Thick as thieves

Equivalents in other languages

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Origin: A fair drew crowds and therefore pickpockets, who cooperated with unusual efficiency because the takings depended on it. Larron is an archaic word for thief, surviving essentially only here.

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