go to town
US /ɡoʊ tə taʊn/
UK /ɡoʊ tə taʊn/

1.
to do something with great enthusiasm, energy, or thoroughness, often to an excessive degree
:
•
When she started decorating for the party, she really went to town with balloons and streamers.
•
He decided to go to town on his new car, adding all the latest gadgets and modifications.