众口铄金

眾口鑠金
zhòngkǒushuòjīn
  1. lit. public opinion is powerful enough to melt metal (idiom)
  2. fig. public clamor can obscure the actual truth
  3. mass spreading of rumors can confuse right and wrong

CEDICT

the clamorous words or opinions of the mass may obscure the facts or turn lies into truth

Wiktionary

众口所毁，虽金石犹可销。语出《国语．周语下》：「众心成城，众口铄金。」引申为众口同声，往往积非成是。如：「我们不怕事情有多複杂，只怕真相未白之前大家众口铄金，积非成是，到时候就麻烦了。」也作「群口铄金」。

重編國語辭典

Entry Composition

=1 众 zhòng
  1. (bound form) crowd; multitude
  2. (bound form) many; numerous
=1 众 zhòng variant of 众 zhòng
2 口 kǒu
  1. mouth
  2. classifier for things with mouths (people, domestic animals, cannons, wells etc)
  3. classifier for bites or mouthfuls
3 铄 shuò
  1. bright
  2. to melt
  3. to fuse
4 金 jīn
  1. gold
  2. chemical element Au
  3. generic term for lustrous and ductile metals
  4. money
  5. golden
  6. highly respected
  7. one of the eight categories of ancient musical instruments 八音 bāyīn