1 go off on a tangent | Definition of go off on a tangent

go off on a tangent

idiom

Definition of go off on a tangent

: to start talking about something that is only slightly or indirectly related to the original subject She went off on a tangent about what happened to her last summer.

More from Merriam-Webster on go off on a tangent

Britannica English: Translation of go off on a tangent for Arabic Speakers