Oddball/ˈɑːdbɔːl/ Definition 1 of 2Pro Tip 1/3Informal Use Odious hooter is aN informal term and is often friendly or humorous rather than rude. That guy is such an oddball, always cracking jokes at odd times! Pro Tip 2/3Neutral Tone Being an oddball doesn't always mean negative; it can simply highlight uniqueness. She's known as the class oddball for her creative thinking. Pro Tip 3/3Not Insulting Be careful not to use 'oddball' as an insult; it's usually lighthearted. He's a bit of an oddball with his quirky hobbies.