stuff and nonsense
Utter foolishness or absurdity, as in Stuff and nonsense, of course I can pack a suitcase. Often used as an interjection, this idiom employs stuff in the sense of “rubbish.” It was first recorded in 1749.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.