muck about

US /mʌk əˈbaʊt/
UK /mʌk əˈbaʊt/
"muck about" picture
1.

membuang masa, bermain-main

to spend time doing silly or unimportant things

:
Stop mucking about and get your work done.
Berhenti membuang masa dan selesaikan kerja anda.
The kids were mucking about in the garden.
Kanak-kanak itu bermain-main di taman.