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
Sydney	SID-nee	English
Henny	HEN-nee	Dutch
Merrion	-	Welsh
Sergiu	-	Romanian
Lauro	-	Italian
Roseanna	[rəu'zænə]