sneeze on the truth

Meanings:

• 1.

  general Englishinformalfigurative
  • To treat the truth with contempt or indifference; to dismiss or belittle a true statement as unimportant or irrelevant.

• 2.

  general Englishinformalfigurative
  • To undermine, corrupt, or taint the accuracy of a truthful account by adding misleading information or unfounded doubt.