keep your shirt on

US /kiːp jʊər ʃɜːrt ɑːn/
UK /kiːp jʊər ʃɜːrt ɑːn/
"keep your shirt on" picture
1.

cálmate, no te enojes

to tell someone to calm down or not to get angry

:
Just keep your shirt on, we'll get there eventually.
Solo cálmate, llegaremos allí eventualmente.
Hey, keep your shirt on! There's no need to yell.
¡Oye, cálmate! No hay necesidad de gritar.