What do we call the act of overtaking a vehicle which is already being overtaken by one or more cars? You see that some other car begins overtaking, and you join this overtaker, and others may join you, creating a dangerous string of overtakers.
It’s kind of “blind overtaking in a row”, where you blindly hope that there will be enough time for you to finish the maneuver, since your visibility is obstructed by the overtakers ahead of you.
In Russian, we call it “обгон паровозиком” – “train-style overtaking”, because several overtaking vehicles look like the carriages of a train.
I don’t necessarily need a single word – a phrase will do. There must be some commonly used expression for this, because this must be a common while dangerous practice. I googled for “overtaking in a queue” and “serial overtaking”, but there were no relevant results.
The simple answer is there is no common phrase for this.
When it does happen, it is similarly described as ‘a train of cars all passing at once.’
In my experience traveling the states I have not seen this happen when vision was obstructed. It does, however, occur on long straightaways with clear vision for some distance.