Meaning of the word "play fast and loose with" in English

What does "play fast and loose with" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

play fast and loose with

US /pleɪ fæst ænd luːs wɪð/
UK /pleɪ fɑːst ænd luːs wɪð/
"play fast and loose with" picture

Idiom

to behave in a way that is not responsible or reliable, often by changing one's mind or not following rules

Example:
He tends to play fast and loose with the company's policies.
You can't just play fast and loose with people's feelings.