go down that road

• go down the road
• go down a road

From road, in the sense of doing or achieving something.

• Audio (General Australian):

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go down that road (third-person singular simple present goes down that road, present participle going down that road, simple past went down that road, past participle gone down that road)

1. (idiomatic) To settle a way of doing something; do decide to do something in a particular way.

   We haven't decided if we want to move yet, but if we go down that road, there'll clearly be no way back.

• don't go there