talk is cheap
Definition from Wiktionary, the free dictionary
- (idiomatic) It is easy to make boastful or unrealistic statements which are not supported by actions or evidence.
1915, Jack London, chapter 2, in The Star-Rover:
- Cecil Winwood accepted the test. He claimed that he could dope the guards the night of the break.
- "Talk is cheap," said Long Bill Hodge. "What we want is the goods. Dope one of the guards to-night."
it is easy to make boastful statements which are not supported by actions