How is “mess around with” used?

In The Way Way Back (2013), one line is: “I'm just messing around with you.”

Which movie is “mess around with” from?

The clip at the top of this page is from The Way Way Back (2013).

to touch or use sth in a careless and / or annoying way

Heard in 4 movies

Oxford100% of films
to touch or use sth in a careless and / or annoying way
You don't mess around with sacred things!

Definitions from the Oxford Advanced Learner's Dictionary, 9th edition

I'm just messing around with you.

Said in 8 films · #1