loco

[ loh-koh ]

noun

, plural lo·cos.

1. locoweed.
2. Slang. an insane person; maniac.
3. Veterinary Pathology. locoism.

verb (used with object)

, lo·coed, lo·co·ing.

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

/ ˈləʊkəʊ /

noun

1. informal.
   short for locomotive

loco

²

/ ˈləʊkəʊ /

adjective

1. slang.
   insane
2. (of an animal) affected with loco disease

noun

1. short for locoweed

verb

1. to poison with locoweed
2. slang.
   to make insane

loco

³

/ 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

   a loco price

   loco Bristol

Word History and Origins

Origin of loco¹

1835–45, Americanism; < Spanish: insane

Word History and Origins

Origin of loco¹

C19: via Mexican Spanish from Spanish: crazy

Origin of loco²

C20: from Latin locō from a place

Example Sentences

There are, broadly, two kinds of magnetic stripe, called HiCo and LoCo.

From BBC

Starting with an ominous echoing sound, he begins to sing “Como Basquiat, ‘toy bien loco como Basquiat” over a simple trap beat.

From Los Angeles Times

Stephany Mejia, guitarrón player and founder of Mariachi Loco del Valle, connected with her passion for mariachi music when she took classes at Plaza de la Raza’s School of Performing and Visual Arts.

From Los Angeles Times

Shortly after seeing Mongo Santamaria at the Belly Up on his 21st birthday, Goldsmith started playing at the venue with his band, Borracho y Loco.

From Los Angeles Times

There are, broadly, two kinds of magnetic stripe, called HiCo and LoCo.

From BBC