Nutter

ˈnʌtə

Meaning & Definition

noun

A slang term, primarily British, for a crazy or eccentric person.

That guy talking to himself in the park is a real nutter.

Someone who behaves in a wildly irrational manner.

She's a bit of a nutter when it comes to her conspiracy theories.

An unpredictable or unconventional person.

I can't believe he jumped off the roof – he's such a nutter!

A person who is excessively enthusiastic about a particular subject.

He's a football nutter, attending every match he can.

Originally from the word 'nut', implying someone with crazy or unusual behavior.

nutcase

a crazy person

nut job

someone who behaves in a strange or irrational way

loony

a crazy or silly person

crazy

mentally deranged; not sane

eccentric

deviating from the recognized or customary character

mad

mentally ill; insane

a silly or foolish person

He's acting like a nutter again, making everyone laugh.

someone who is overly enthusiastic about something

That guy is a total music nutter; he knows everything about every band.