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.

Name	Pronounced	Usage
Catharina	kah-tah-REE-nah (Dutch)	Dutch, Swedish
Nishant	-	Indian, Hindi, Marathi, Gujarati
Dickerson	['dikəsən]
Karyna	-	English (Rare)
Davies	['deivi:z]
Dauid	-	Biblical Greek