go to town

US /ɡoʊ tə taʊn/
UK /ɡoʊ tə taʊn/
"go to town" picture
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.