Fiddle with and Mix in

Fiddle with verb - To handle thoughtlessly, ignorantly, or mischievously.

Mix in and fiddle with are semantically related. In some cases you can use "Mix in" instead a verb "Fiddle with".

Mix in verb - Add as an additional element or part.

Fiddle with and mix in are semantically related. Sometimes you can use "Fiddle with" instead a verb "Mix in".