Keep shirt on!

Keep your shirt on!

(British, American & Australian informal) also Keep your hair on! (British & Australian informal)

a slightly impolite way of telling someone who is angry to try to be calm and patient Keep your shirt on! I'll be with you in a second.

Name	Pronounced	Usage
Celso	CHEL-so (Italian), THEL-so (Spanish), SEL-so (Latin American Spanish)	Italian, Spanish, Portuguese
Ananth	-	Tamil, Indian, Telugu, Kannada
Alaric	['ælərik]
Adella	ə-DEL-ə	English
BoŻEna	baw-ZHE-nah	Polish
Joby	JO-bee	English (Rare)