Wiktionary
vb. To play, or to fool around.
Usage examples of "goof around".
The Grant Park barbecue was an informal way for everyone to get together and goof around before the scheduled events got underway at the convention center on Monday morning.
That musclebound bozo Blazes McFlynn is the next one down -- Mattison can hear him in the breakfast room razzing Herzog, who for some reason he likes to goof around with.
Sometimes it's enough of an effort just to watch the others goof around, and I've been driving all day.
All of my new troops claimed to be beautiful women, or reasonable facsimiles thereof, but there was no time to goof around.
Soldier'll goof around, bullshit, crack jokes when nobody important's looking.
It had been thirty years since he and Jerry Riggins used to goof around in the creek that ran down by the old mill—.