"Tu peux te brosser" or "tu peux toujours rêver" means you can keep dreaming or in your wildest dream. It's a useful expression when you try to tell someone to be more realistic or to give up on what they want to do.The example in the episod
Two French idioms look similar, but have totally different meanings:1. Ne pas faire long feu - Things that are ephemeral; lasting a very short time 2. Faire long feu - to miss the original goal; to failExamples in the episode:1. Le coup
Prendre le taureau par les corns - to deal with a difficult situation in a determined way instead of bypassing it. In English, we say to take the bull by the horns
Se faire appeler Arthur - a very handy and colloquial expression in daily French conversations.Other synonyms include se faire réprimander, rappeler à l'ordre, both indicate to be severely scolded or to be called to order