keep your hair on1 British EnglishBrE spokenCALM used to tell someone to keep calm and not get annoyed 保持冷静,别发火 All right, all right, keep your hair on! I’m sorry. 好啦,好啦,别发火!对不起。
→ keep your hair on at hair(4)
2 used to tell someone to be more calm, patient etc 保持冷静! 耐心点! → keep your hair/shirt on! at keep1(SPOKEN SECT)