mess around with (someone or something)

mess around with (someone or something)

1. To fiddle with something. Hey, don't mess around with the thermostat—it needs to stay at 65 degrees. Grandpa's still messing around with that old radio, but I doubt he'll get it to work again.
2. To test or use something in order to learn more about it. I'm messing around with a different platform for my blog, and I can't decide if I like it or not.
3. To waste time with someone or something. Quit messing around with the dog and work on your book report already, Scotty!
4. To engage in casual sex acts with someone. Betsy and I are just messing around, which is great because I don't want a serious relationship anyway.
See also: around, mess