Lebanon· hard
mettre ses mains dans l'eau froide
“to put one's hands in cold water”
Meaning
to wait calmly for good news you're already expecting
Explanation
Said of someone who isn't fretting, because they're already confident the outcome will go their way, so why bother intervening.
Example
Elle a mis ses mains dans l'eau froide en attendant les résultats du concours, certaine d'avoir réussi.
She's put her hands in cold water while waiting for the exam results, certain she's passed.
Origin
One of a cluster of expressions Projet Voltaire groups under franbanais, French shaped by literal translation from Lebanese speech patterns.
Source