crazy as a bedbug
Totally off kilter
Crazy as a bedbug means extremely eccentric, irrational, or mentally unhinged.
The comparison to bedbugs—small insects notoriously difficult to eliminate once they infest a home—suggests erratic, unpredictable behavior.
The phrase is informal and often affectionate rather than clinical: My uncle was crazy as a bedbug, but we loved him.
- mad as a hatterCompletely, absurdly insane
- mad as a March hareWildly irrational, eccentrically crazy
- bats in the belfryIdiom for insanity
- out to lunchDistracted, unaware of surroundings
- not all thereMentally deficient somehow
buggy · off one's rocker · erratic · cuckoo · bonkers · batty · bananas · antsy · buzzing · barking mad · stark raving mad · unhinged · round the bend · loony tunes · delirious · out of one's mind · nutty as a fruitcake · manic
crazy as a bedbugsane
Mentally healthy, clearheaded
of sound mind · rational · lucid · level-headed · compos mentis
crazy as a bedbugnormal
Conforming to standard
ordinary · conventional · predictable · calm · collected
crazy as a bedbugsensible
Showing good judgment
reasonable · rational · level-headed · sober · measured
crazy, crazier, craziest, crazily, craziness, craze, crazed, bedded, bedding