Fiddle with and Fix up

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

Fix up and fiddle with are semantically related. in fix topic. In some cases you can use "Fix up" instead a verb "Fiddle with", when it comes to topics like adapted, bring into agreement or to a standard.

Fix up verb - Make arrangements for.

Fiddle with and fix up are semantically related. Sometimes you can use "Fiddle with" instead a verb "Fix up".