be rolling in it
US /bi ˈroʊlɪŋ ɪn ɪt/
UK /bi ˈroʊlɪŋ ɪn ɪt/

1.
sangat kaya, berlimpah ruah
to be very rich
:
•
After selling his company, he's rolling in it.
Selepas menjual syarikatnya, dia sangat kaya.
•
They must be rolling in it to afford such a huge house.
Mereka mesti sangat kaya untuk mampu membeli rumah sebesar itu.