fiddle around with
phrasal verbPart offiddle
fiddle around with — phrasal verb
1. To make small changes to something in an attempt to improve it, often without su
1.phrasal verb
Definition
To make small changes to something in an attempt to improve it, often without success.
Example
Diego fiddled around with the recipe but it still tasted bad.
Why do you keep fiddling around with the thermostat?