be blown off course

be blown off course

1. Literally, to be pushed off the route that one is trying to follow, as of a ship in the wind. Captain, do you know where we are? I think we've been blown off course!
2. By extension, to have one's plans interrupted or interfered with. I just don't want your goal of becoming valedictorian to be blown off course by anything—including this new girlfriend of yours.
See also: blown, course, off
Farlex Dictionary of Idioms.

be blown off course

have your plans disrupted by some circumstance.
This phrase is a nautical metaphor: contrary winds turn a sailing ship away from its intended course.
See also: blown, course, off
Farlex Partner Idioms Dictionary
See also:
  • flow with the breeze
  • literally
  • be blown away
  • be blown away by something
  • blown away
  • blow off the map
  • snug down
  • course
  • by George
  • George