Strange bird noun phrase informal
A strange, abnormal, or unusual person.
Sophia's really quite a strange bird. Sometimes, I can't understand what she's doing.
Will is a strange bird, he never takes a break after hard working.
Your stepmother is a strange bird!
Used to describe someone who is good at persuading people to do or believe something
Show fortitude, and determination of character
a person who is easily deceived or manipulated to do something, especially giving someone money.
It means people cannot change their nature like personalities, habits, etc.
A despicable person who does unscrupulous or immoral things
Used to to emphasize that attention is paid to the individuals who complain or cause problems
Sometimes, you shouldn't be so quiet because the squeaky wheel gets the grease.