If you refer to someone as an oddball, you think they behave in a strange way.
[informal]
His mother and father thought Jim was a bit of an oddball too.
Oddball is also an adjective.
I came from a family that was decidedly oddball, you know.
oddball in British English
(ˈɒdˌbɔːl) informal
noun
1. Also called: odd bod, odd fish
a strange or eccentric person
adjective
2.
strange or peculiar
oddball in American English
(ˈɑdˌbɔl)
US
noun
1. Slang
an eccentric, unconventional, or nonconforming person
adjective
2. Slang
strange or unconventional
Word origin
odd + ball1
Examples of 'oddball' in a sentence
oddball
In those days it just meant a bit of an oddball.
Shawn Levy READY, STEADY, GO!: Swinging London and the Invention of Cool (2002)
In fact, you had to be a bit of an oddball to resist.
Times, Sunday Times (2010)
I was also a bit of an oddball at school.
Times, Sunday Times (2013)
Can the siblings make a go of their new business, especially when they have their oddball family to deal with?
The Sun (2010)
Not crazy, but funny, and a little bit oddball.
Times, Sunday Times (2010)
A bit of an oddball.
Times, Sunday Times (2010)
Fun as conspiracy theories are, there is little here to suggest that Bellingham was anything other than the eccentric oddball that history has generally painted him as.