He was always known as the odd duck in the family.
strange duck
Frequency:
65
%
The strange duck waddled around in circles.
quirky duck
Frequency:
60
%
The quirky duck stood out among the other ducks at the pond.
Idiomatic Expressions for queer duck
Phrase: the queer duck
Meaning: the odd one out or the unusual person in a group
Usage: In a family of doctors and lawyers, she was always the queer duck pursuing a career in art.