bonkers

[bong-kerz] /ˈbɒŋ kərz/

adjective, Slang.

mentally unbalanced; mad; crazy.

Origin

1945-50; of uncertain origin; for final element, cf. -ers

Examples from the web for bonkers

Trainers look for dogs that go bonkers over a favorite toy, such a tennis ball.
But they're bonkers when it comes to giving sanctuary.
The sleeper parched of his dreams, or purged of his nightmares, goes swiftly bonkers: without fantasy there is no reality.
They're not all that interested in that, except when it's time to film, and then they go bonkers.
Tech culture has a habit of going bonkers for the flavor of the week.
At first he was wary, because the guy's really bonkers.
If you subject people to various kinds of inhumane and abusive treatment, some fraction will go bonkers.
But for the past three or four years, typefaces have gone bonkers.
She also goes bonkers over the sight of the color red.
Those who are sound of limb, clear of eye, and absolutely bonkers can do it in a day.

British Dictionary definitions for bonkers

bonkers

/ˈbɒŋkəz/

adjective

(slang, mainly Brit) mad; crazy

Word Origin

C20 (originally in the sense: slightly drunk, tipsy): of unknown origin

Word Origin and History for bonkers

adj.

"crazy," 1957, British slang, perhaps from earlier naval slang meaning "slightly drunk" (1948), from notion of a thump ("bonk") on the head.

Slang definitions & phrases for bonkers

bonkers

adjective

Crazy; insane; nuts: Folks are going slightly bonkers these days over anything that glitters/ suffering stress-related ailments like eczema or colitis, or just plain going bonkers

[1950s+ British; probably fr bonk, ''to hit on the head,'' plus the British slang suffix -ers]