to go off on a tangent
01
to begin talking about a subject that is not in any way related to the original topic that is being discussed
Dialect
American
American
![to [go] off on a tangent definition and meaning](https://cdn.langeek.co/photo/46081/original/?type=jpeg "to [go] off on a tangent definition and meaning")
Idiom
Informal
Exempel
She went off on a tangent about what happened to her last summer.
During the meeting, the manager went off on a tangent and started talking about unrelated projects, which confused everyone.
