Do a 180 degree turn expression
To make a major or dramatic change in a particular aspect of one's life.
No one in my family is in favor of the idea of my doing a 180-degree turn on being a fighter.
You know what! Mary did a 180 degree turn. She decided to pursue a musical career despite protests from her parents.
The verb "do" must be conjugated according to its tense.
The origin of this phrase is not clear.
A humorous way of saying that what one has said is just what they acknowledge and may not be entirely accurate
Mike: Have you returned from your vacation on the beach? Your skin seems to get tanned.
Jenny: My skin is always dark. That's my story and I'm sticking to it!