Nutjob informal noun slang slang
A derogatory term for someone who is crazy or psychotic
My friends called me a nutjob when I told them my future plan.
We were just talking when some nutjobs suddenly screamed and broke things.
A person who is eccentric or wild
He was a creative person, and also a nutjob.
Stupid or crazy
If you're off your trolley, your ideas or behaviour are crazy or insane.
Suddenly become crazy or very angry or lose control
Totally insane; overflowing with emotion, especially rage or enthusiasm
To do domething based on your emotions rather than for rational reasons
I can't believe that Tom beat his classmate. He's always the one who let his heart rule his head.