tumle/boltre seg, base

romp(verb)

to play in a lively way, especially by running about, jumping etc

The children and their dog were romping about on the grass.

basing, vilter lek

romp(noun)

the act of romping

The children had a romp in the grass.

rase gjennom, gjøre i full fart

romp(verb)

to progress quickly and easily

Some people find these problems difficult but he just romps through them.