Definition of "guff"

guff

/ɡʌf/

noun
countable and uncountable, plural guffs
1. (informal, uncountable) Nonsensical talk or thinking.
  Quotations
  “… That woman is stark mad, Lord Stranleigh. […] If she had her way, she’d ruin the company inside a year with her hare-brained schemes ; love of the people, and that sort of guff.”
  1913, Robert Barr, chapter 4, in Lord Stranleigh Abroad‎
2. (informal, uncountable) Superfluous information.
3. (informal, uncountable) Insolent or otherwise unacceptable remarks.
4. (slang, countable) A fart; act of breaking wind.
verb
third-person singular simple present guffs, present participle guffing, simple past and past participle guffed
1. (slang) To fart.
2. (slang) To mislead.
  Quotations
  "Let me see if I get you. You can't bear to help convict Ashe of murder because you doubt if he's guilty, so you're scooting. Right?" […] "That's close enough," Wolfe said."Not close enough for me. If you expect me to […] invite a stiff fine for running out on a subpoena […] , don't try to guff me. Say we doubt if Ashe is guilty, but we think he may get tagged because we know Mandelbaum wouldn't go to trial without a good case. Say also our bank account needs a shot in the arm, which is true. So we decide to see if we can […] "
  1955 October, Rex Stout, “The Next Witness”, in Three Witnesses, Bantam, published 1994, page 14