"You canker blossom!" 3 Shakespearean Insults
"nonsense," 1928, said to have been coined by U.S. cartoonist Billy De Beck; perhaps a variant of horseshit "nonsense," though the latter is attested only from 1940s.
An exclamation of disbelief, rejection, contempt, etc: Mail comes urging that something be done to ''rescue children from guns, daggers, and soldier worship.'' Horsefeathers!noun