go off on a tangent

Stray from topic

To go off on a tangent is to veer suddenly from the main topic into something loosely related or unrelated: We were discussing the budget, but she went off on a tangent about her vacation.

The phrase comes from geometry—a tangent line touches a circle at one point before heading in its own direction.

Often shortened to go on a tangent.

Related

stray · diverge · change the subject · lose the thread · where was I · ramble · free association · detour · rabbit hole · daydreaming · lateral thinking · swerve · overshare · veer · drift · derail · long story short · anecdote

Opposites
focus and relevance

go off on a tangentstay focused

Maintain mental concentration

stay the course · stay grounded · keep one's eye on the ball · stay in one's lane · toe the line

directness of communication

go off on a tangentget to the point

Speak directly now

cut to the chase · speak plainly · get down to brass tacks · wrap it up

focus and directness

go off on a tangentstay focused

Maintain mental concentration

get to the point · cut to the chase · stay the course · zero in · hone in

Family

going, gone, tangent, tangents, tangential, tangentially, tangency

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G