au doigt mouillé
French
editEtymology
editA reference to the practise of moistening one's finger and putting it upright to find which way the wind goes approximately. Compare Dutch nattevingerwerk, English finger to the wind.
Pronunciation
editPrepositional phrase
edit- (informal) by the seat of one's pants, as a rule of thumb
- une estimation au doigt mouillé ― a ballpark estimate