Stick (one's) chin out verb phrase
Show fortitude, and determination of character
He has stuck his chin out and built his business successfully in tough economic times.
Jane always sticks her chin out whenever she meets challenges.
He stuck his chin out in carrying on his professional work in spite of difficulty and pressure.
Used to describe someone who is good at persuading people to do or believe something
It means people cannot change their nature like personalities, habits, etc.
A despicable person who does unscrupulous or immoral things
Someone is not as bad, cruel, maleficent as they are said or believed to be.
Used to indicate upper-class girls or women who behave in a passionate and enthusiastic way that irritates others
The verb "stick" should be conjugated according to its tense.
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!