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A complete and total dismissive of a person, idea or situation. Can be used to tell someone to get lost or that you really don't care about a certain subject.

Salesman: "I'm selling widgets"
Joe: "I don't want one"
Salesman: "If I could just have a minute-"
Joe: "Go take a flying fuck on a rolling doughnut" (slams door)

Joe: "Sorry I'm late, there was a traffic jam"
Boss: "I don't give a flying fuck on a rolling doughnut what there was, you better have your ass here on time from now on!"
by killersbytrade May 14, 2010