chill out
US /tʃɪl aʊt/
UK /tʃɪl aʊt/

1.
relajarse, calmarse
to relax completely, or not allow things to upset you
:
•
I'm just going to chill out at home this weekend.
Solo voy a relajarme en casa este fin de semana.
•
You need to chill out and stop worrying so much.
Necesitas relajarte y dejar de preocuparte tanto.