collision course

noun
1.
a course or path of a vehicle, projectile, etc., that, if unchanged, will lead to a collision with another object.
2.
any plan, attitude, or course of action that leads to a confrontation or conflict with another.

Origin:
1940–45

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
collision course

noun
1. a course of a moving object that will lead to a collision if it continues unchanged 
2. a course of action (following a given idea) that will lead to conflict if it continues unabated 
WordNet® 3.0, © 2006 by Princeton University.
Cite This Source
00:10
Collision course is always a great word to know.
So is slumgullion. Does it mean:
a scrap or morsel of food left at a meal.
a stew of meat, vegetables, potatoes, etc.
Example sentences
The push to digital and cellular broadcasting puts migratory birds on a
  collision course with technology.
Risk managers who said no put themselves on a collision course with the
  business head and often the chief executive too.
Four minutes later, the probe will fly through the plume on its own collision
  course.
But the military wants heads to roll in the cabinet, and that could put it on a
  collision course with the government.
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