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To be, or to become crazy or stupid - synonyms or related words

spit the dummy

to behave in a childish or unreasonable manner

be/go out of your mind

to be/become crazy or confused

lose the plot

to start behaving in a strange or silly way

take leave of your senses

to start behaving in a way that is not sensible or reasonable

go mad

to become crazy because you are so bored, upset etc

go nuts

informal

to behave in a crazy, enthusiastic, or violent way

have a screw loose

to be slightly crazy

be going soft (in the head)

to be becoming silly or slightly crazy

need your head examined

to seem to be crazy or to be doing stupid things

be/go round the bend

to become crazy

rat tail

a type of hairstyle which has a long, thin strip of hair growing down the back of the neck

BuzzWord Article

Open Dictionary

speak human

(of a politician) to be able to communicate and connect with ordinary people

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