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- do a one-eighty
do a one-eighty
do a one-eighty
and turn one hundred and eighty degrees 1. Lit. to turn around and go in the opposite direction. When I hollered, the dog did a one-eighty and headed back to its own yard.
2. Fig. to radically reverse a decision or opinion. His political philosophy turned one hundred and eighty degrees when he grew a little older.