to go off at a tangent
01
to start talking about something that is in no way related to the topic being discussed
Dialect
British
British![to [go] off at a tangent definition and meaning](https://cdn.langeek.co/photo/46081/original/?type=jpeg "to [go] off at a tangent definition and meaning")
例
He always goes off at a tangent when we talk about something serious.
to start talking about something that is in no way related to the topic being discussed
British
