keep your hair on

US /kiːp jʊər hɛər ɒn/
UK /kiːp jʊər hɛər ɒn/
"keep your hair on" picture
1.

stare calmo, non arrabbiarsi

used to tell someone to calm down and not get angry or upset

:
Just keep your hair on, there's no need to get so worked up.
Stai calmo, non c'è bisogno di agitarsi così tanto.
Hey, keep your hair on! It was just a joke.
Ehi, stai calmo! Era solo uno scherzo.