larking about

verb (phrasal verb)
UK /ˈlɑːkɪŋ əˈbaʊt/
US /ˈlɑːrkɪŋ əˈbaʊt/

Playing around in a silly, happy way.

The kids were larking about in the garden after school.


OTHER MEANINGS

2. Being playful instead of doing something serious or useful.

Stop larking about and finish your homework.

3. Running and jumping around with lots of energy.

The puppies were larking about on the grass.

4. Joking and laughing with friends in a lighthearted way.

We spent the whole break larking about by the lockers.