IdiomFood & DrinkFrench

Être soupe au lait

Meaning: To be quick-tempered and flare up easily.

Literally: To be milk soup

Example: “Attention, il est soupe au lait : il s'énerve pour un rien.” — Careful, he has a short fuse: he gets angry over nothing.

English equivalent: To have a short fuse

Origin: Milk heated in a pot rises suddenly and boils over the moment one looks away, and milk soup does the same. Someone who is soupe au lait flares up just as quickly and often calms down as fast. In Labiche's comedy Embrassons-nous, Folleville ! (1850), a character boasts that he gets carried away comme une soupe au lait.

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