off (one's) head

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off (one's) head

1. Crazy, insane, or eccentric. Often used humorously or sarcastically. I think you're off your head for changing careers this late in life, but, hey, follow your dreams. He's off his head if he thinks he can get that engine fixed by this weekend. My auntie likes to let people think she's off her head, but she's actually incredibly clever and witty.
2. Severely intoxicated by alcohol or drugs. No wonder he's failing—he's off his head every night! We all popped the pills and were off our heads by the time the concert started.
See also: head, off

off one's head

Also, off one's nut or rocker or trolley or chump . Crazy, out of one's mind, as in You're off your head if you think I'll pay your debts, or I think Jerry's gone off his nut over that car, or When she said we had to sleep in the barn we thought she was off her rocker, or The old man's been off his trolley for at least a year. The expression using head is colloquial and dates from the mid-1800s, nut has been slang for "head" since the mid-1800s; rocker, dating from the late 1800s, may allude to an elderly person falling from a rocking chair; trolley, also dating from the late 1800s, may be explained by George Ade's use of it in Artie (1896): "Any one that's got his head full of the girl proposition's liable to go off his trolley at the first curve." The last, chump, is also slang for "head" and was first recorded in 1859.
See also: head, off

off your head

BRITISH, INFORMAL or

out of your head

INFORMAL
1. If someone is off their head or out of their head, they are crazy. You must be off your head to live in this area. If he didn't kill anybody it was only by luck because he was out of his head and screaming like a maniac.
2. If someone is off their head or out of their head, they have taken so many drugs or drunk so much alcohol that they do not know what they are doing. Basically, this song sounds great when you're off your head on Ecstasy. These days I get out of my head on one glass of wine.
See also: head, off

off (or out of) your head

1 mad or crazy. 2 extremely drunk or severely under the influence of illegal drugs. informal
See also: head, off
References in periodicals archive ?
This took all the pressure off Head and three further strikes brought a comfortable win in the end.
Mr Willis added: "In its obsession with testing and targets the Government has taken its eye off head teacher recruitment and failed thousands of pupils."
In Paris, an incident was 'resolved in a few hours'.In other cases around France, girls took off head coverings before entering school.
feet of head (TDH), shut off head shall be a minimum of 92 feet.
The National Asso-ciation off Head Teachers (NAHT) also wants legislation to curb the growing use of litigation against schools.
A Thameslink source said: "Someone tipped off head office he'd been smoking drugs in a pub in Luton.
After stoning the Satan, Hajj pilgrims will shave off heads or trim hairs, to the prescribed level, and then would get off the Ahrams, Hajj cloths, at completion of Hajj rituals.
The Aussie said: "They've been saying they're ready to rip off heads. It's the biggest game they will play in their lives."
The statement off Heads of Governments of the CIS member-states on consolidating efforts of the global community to efficiently counter international cartels is an official document of the 72nd session of the UN General Assembly with the agenda on Macroeconomic policy: international trade and development.
Zakharova also critically commented on Power's statement the US cannot support the ISIL, since its militants cut off heads of the US citizens.
The new series - the last before Bake Off heads to Channel 4 without presenters Sue Perkins and Mel Giedroyc - kicked off with an average of 10.4m viewers.
He should've said IS must be militarily defeated and its remnants would need to stop chopping off heads and crucifying people.
THE VERDICT Deadpool niftily turns the superhero genre on its head with a bloody but brutally funny film that is ideal for Ryan Reynolds, a perfect fit as the witheringly witty anti-hero who blasts bits out of bodies and chops off heads while delivering dark gags.
The Lebanese have effectively lost their independence without a president and due to the absence of a just and fair electoral law; chopping off heads predated the appearance of ISIL by over than one century under Ottoman tutelage, he added.