chill out

From chill and out.

chill out (third-person singular simple present chills out, present participle chilling out, simple past and past participle chilled out)

(intransitive, slang) To relax or take time out; to calm down; reduce or go easy on something.
Synonym: chill

Since I'm between projects, I think I'll just chill out.

I wish I could chill out about the neighbor's barking dog, but it wakes me up every night.

You should chill out on the fatty foods.
- 2002 April 23, Avril Lavigne, Lauren Christy, Graham Edwards, Scott Spock (lyrics and music), “Complicated”, in Let Go, performed by Avril Lavigne, Arista Records:
  Chill out, whatcha yelling for?
- 2004, Simon Pegg, Edgar Wright, Shaun of the Dead (motion picture):
  Ed: Chill out. Everyone's all right. / Shaun: Stop telling me to chill out!
- 2004 January 2, Ariel Levy, “Where the Bois Are”, in New York Magazine‎:
  A girl […] telling her friend, “I met her at a party three weeks ago, but now she’s like e-mailing me and I’m just like, chill out, bitch!”
(intransitive, slang, somewhat dated) To hang out; spend time together with another person or group.
Synonyms: chill, hang out

Hey, we should chill out together this weekend.

relax or take time out

Arabic: إِسْتَرْخَى (ʔistarḵā)
Hijazi Arabic: رَوَّق (rawwag)
Bulgarian: успокоявам се (uspokojavam se), отпускам се (otpuskam se)
Chinese:
Mandarin: 冷静 (zh) (lěngjìng)
Dutch: niksen (nl)
Finnish: chillata (fi)
French: se calmer (fr), se détendre (fr), se relaxer (fr)
Galician: acougar (gl)
German: sich entspannen
Italian: calmarsi (it), rilassarsi (it)
Polish: uspokoić się (pl) pf, wyluzować się pf, wyluzować pf, rozluźnić się (pl) pf, zrelaksować się pf
Portuguese: relaxar (pt), sossegar (pt)
Scottish Gaelic: gabh socair
Spanish: relajarse (es)
Swedish: ta det lugnt (sv), slappna av (sv), chilla (sv) (slang)
Turkish: rahatlamak (tr), sakinleşmek (tr)

chill out (plural chill outs)

English