American Slang

>Hang out:this means to spend some time together

Textbook English: Let’s spend some time together on Saturday.
Slang: Let’s hang out on Saturday.
 
>Chill out: this means to relax or unwind
Textbook English: We should relax on Sunday and go to the park.
Slang: We should chill out on Sunday and go to the park.

“Let’s hang out at Starbucks this afternoon and just chill out!”