off one's head
Lost one's marbles
Off one's head means crazy, irrational, or not thinking clearly.
The phrase suggests someone's mind has become detached from normal functioning: You'd have to be off your head to swim in that water.
In British slang, it also describes being extremely drunk or high: He was completely off his head at the party.
Sometimes shortened to off his head or similar.
- madnessMental derangement or folly
- stark raving madUtterly, wildly insane
- bonkersWildly irrational, unhinged
- drunkImpaired by alcohol
- three sheets to the windExtremely inebriated state
insanity · wild · erratic · babble · lunacy · losing it · loopy · high · crazy · round the bend · impulsive · off the wall · oddball · derangement · illogical · howl · delirium · not all there
off one's headsane
Mentally healthy, clearheaded
lucid · rational · in one's right mind · of sound mind · clear-headed
off one's headsober
Free from intoxication
straight · clean · clearheaded · clear-headed · dry
off one's headcalm
Free from agitation
composed · collected · cool-headed · level-headed · in control
head, offs, ones, heads, headed, heading, header, headless, heady