A pun or quibble. To clinch, or to clinch the nail; to confirm an improbable story by another: as, A man swore he drove a tenpenny nail through the moon; a bystander said it was true, for he was on the other side and clinched it.
CLINCH
Meaning of CLINCH in English
Slang English vocab. Английский сленговый словарь. 2012