Belgium· informal

il fait caillant

“it's curdling”

Meaning

it is freezing cold

Elsewhere

il fait très froid

Explanation

France says il fait très froid, or ça caille when being casual. Belgium turns cailler into an adjective and says il fait caillant.

Example

Mets un bonnet, il fait caillant dehors ce matin.

Put a hat on, it's freezing outside this morning.

Origin

Caillant is the present participle of cailler, to curdle, used as an adjective for the cold.

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