be all talk (and no action)

be all talk (and no action)

To talk a lot about something that one has not actually done or will not actually do. She may brag about donating money to the school, but I know she's all talk and no action. Oh, he's all talk—he's never worked a day in his life!
See also: all, no, talk
Farlex Dictionary of Idioms.

be all ˈtalk (and no action)

(disapproving) be a person who talks a lot about what they are going to do or have done without actually doing much: Don’t listen to her promises — she’s all talk and no action.
See also: all, talk
Farlex Partner Idioms Dictionary
See also:
  • be all talk
  • cider
  • all talk
  • all talk (and no action)
  • be two sides of the same coin
  • two sides of the same coin
  • fuss
  • a fuss about nothing
  • a fuss over nothing
  • same same, but different