Ways of Saying You Are Crazy

TO BE CRAZY = TO BE... bananas loony loopy mad mental nuts nutty whacky mad as a hatter mad as a March hare non compos mentis round the bend   TO BE SLIGHTLY CRAZY = TO BE... barmy bonkers cracked dotty funny in the head queer in the head   EXPRESSIONS FOR WRONG THINKING OR NOT THINKING CLEARLY (used humorously) You're wired-up wrongly You have the brain in neutral You have a lame brain You have a screw loose You have a loose connection up top   EXPRESSIONS THAT IMPLY 'INFESTATION' (used humorously) You have bats in the belfry You have bats in the attic You have bugs in the brain You have rats in the loft You're batty   EXPRESSIONS THAT IMPLY 'EMPTINESS OR SOMETHING MISSING' (used humorously) You're gone in the head You're half gone You're half there You're not all there You're not quite right You're out to lunch You're a bubble-head You're a space case You're an airhead You're on another planet You're unglued You have flats to let You have rooms to rent You lost it You lost the plot You lost your marbles You're knitting on only one needle You're driving on two wheels You're playing with only one umpire You haven't got both oars in the water Something's missing upstairs Lights on, but nobody home You're not a full quid You're ten pence short of a quid You're ten cents short of a dollar You're two pence short of a bob You're only eighty pence to the pound You're five annas short of a rupee You're two bricks short of a load You're a couple wafers short of a communion You're a few girls short of a chorus line You're a sandwich short of a picnic You're one beer short of a round You're one shoe short (of a pair) You're one stump short of a wicket You're one ball short of an over You're one innings short of a match You're one match short of a test