Today’s topic: phrasal verb “let one’s hair down”, an informal way of saying to have a good or great time, enjoy oneself. However, this phrase is also used as practical action when someone actually frees one hair from a pony tail or hair bun.<br /><br />Examples<br /><br />"The colleagues couldn’t wait until 5 o’clock because they go to the local bar and let their hair down."<br />The colleagues were ready to leave their office and go home to have some fun. <br /><br />The woman’s pony tail was giving her a headache, so she let her hair down. - Practical<br /><br />“I’m going to let my hair down and celebrate!” shouted the birthday girl. - Expression