SafeSouthquotidien
chạy
literally: to run
In southern speech it also means "to head home / take off", not just "to run"
How people actually use it
Thôi tao chạy trước, tụi bây ở lại chơi vui hén.
Alright, I'm taking off first, you guys stay and have fun.
Who can you say it to? Fine with anyone your age.