Horsefeathers!

horsefeathers

slang Nonsense or foolishness. Often used as an exclamation to emphasize that something is nonsense. Oh, that's just horsefeathers, and you know it. A: "Tim said he wants to sell the farm!" B: "Horsefeathers! I said no such thing!"
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

Horsefeathers!

exclam. Phooey!; Nonsense! Horsefeathers! I did no such thing!
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
When our friends say anything else, he snorts and says "Horsefeathers!" to them.
To this logic of faulty comparison I can only say: "Horsefeathers!"
We hear rubrics like, "No picture, no story," or "That's a newspaper story, not good TV." Horsefeathers! Good people can craft "newspaper" stories into effective, important video.
"The rule's cap-and-trade system will create the incentive for big early reductions in pollution." Horsefeathers! What he's describing is a kind of cruel lottery: If you live downwind from a plant which has bought mercury credits, you lose.