mess around

“Because, listen here, sweetheart: We’re not messing around this time, and we will put your fat a** in prison for conspiracy against rights, and I promise you that.”

Here's Trump promising RFK Jr. "a good time" messing around with the public health system:

This was all developed and worked out, and by the time the World’s Fair hit, and the ’60s hit, he had a good eight or nine years of messing around, and now he’s blossoming.

Jones later said on social media that they were "messing around", and it was part of "an inside joke".

"We just wanted to say we were messing around," Jones later said in a video standing alongside Evans, with both saying they were "sorry".