keep your shirt on
US /kiːp jʊər ʃɜːrt ɑːn/
UK /kiːp jʊər ʃɜːrt ɑːn/

1.
zachować spokój, nie denerwować się
to tell someone to calm down or not to get angry
:
•
Just keep your shirt on, we'll get there eventually.
Po prostu zachowaj spokój, w końcu tam dotrzemy.
•
Hey, keep your shirt on! There's no need to yell.
Hej, zachowaj spokój! Nie ma potrzeby krzyczeć.