Mail courir

"Mail courir" is a French idiomatic expression that translates to "to run around in circles" or "to go around in circles". It is often used to describe someone who is wasting their time or energy on something that is not productive or is going nowhere.

For example:

• "Il a couru après une femme qui ne l'aimait pas, il a mail courir." (He ran after a woman who didn't love him, and he ended up going around in circles.)
• "Je me sens comme si j'avais mail courir pour trouver une solution à ce problème." (I feel like I'm running around in circles trying to find a solution to this problem.)

The expression is thought to have originated from the idea of someone running around in circles, getting nowhere, and achieving nothing. It is often used to describe a situation that is frustrating, futile, or unproductive.