laugh out of court

Idioms  

1. Dismiss with ridicule or scorn, as in When he told them the old car could be repaired, they laughed him out of court. This expression, which originally referred to a case so laughable or trivial that a court of law would dismiss it, originated in ancient Roman times but has been used in English, without its former legal significance, since the late 1800s.

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Example Sentences

In the reformations of a growing people, whatever the age in which they happen, whatever the religion or policy or conduct of the age, leading spirits rebel against what is most oppressive and resent what is most arrogant in that age; they reject what is most false and laugh out of court what is most ridiculous.

From Project Gutenberg