How is “not mess around” used?

In Ray (2004), one line is: “They're doin' the mess around”

Which movie is “not mess around” from?

The clip at the top of this page is from Ray (2004).

Modismo

to do sth quickly, efficiently or in the right way

informal · Se oye en 53 películas

to do sth quickly, efficiently or in the right way
When they decide to have a party they don't mess around.

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

They're doin' the mess around

En 8 películas · n.º 1