loco

American  

[loh-koh] / ˈloʊ koʊ /

noun

PLURAL

locos

1. locoweed.

2. Slang.  an insane person; maniac.

3. Veterinary Pathology.  locoism.

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verb (used with object)

locoed, locoing

1. to poison with locoweed.

2. Slang.  to cause to be insane or crazy.

adjective

1. Slang.  out of one's mind; insane; crazy.

loco ¹ British  

/ ˈləʊkəʊ /

adjective

1. slang  insane

2. (of an animal) affected with loco disease

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noun

1. short for locoweed

verb

1. to poison with locoweed

2. slang  to make insane

loco ² British  

/ ˈləʊkəʊ /

noun

1. informal  short for locomotive

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loco ³ British  

/ ˈləʊkəʊ /

adjective

1. denoting a price for goods, esp goods to be exported, that are in a place specified or known, the buyer being responsible for all transport charges from that place

   loco Bristol

   a loco price

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Etymology

Origin of loco

1835–45, < Spanish: insane

Example Sentences

Trump nabbed 36% of the vote — though not from my father, who thinks he’s a “loco” — despite the former and future president’s promise to deport as many undocumented immigrants as he can.

From Los Angeles Times

On the return journey, a bolt sheared on what is now more widely known as the Penydarren loco, causing the boiler to leak.

From BBC

He was also asked about his understanding of the term "in loco parentis", namely having responsibilities for children in the absence of their parents or guardians.

From BBC

Guardianship letters convey authority and the right to make decisions concerning the child or children “in loco parentis,” which is Latin for “in place of the parents.”

From Encyclopedia.com

The chickens and birds he passed when riding his bike down Front Street to make loco moco and pancakes for patrons at the cafe where he worked.

From Salon