lo·co | \ˈlō-(ˌ)kō \

Definition of loco 

(Entry 1 of 4)

: in the register as written used as a direction in music

loco

noun
plural locos or locoes

Definition of loco (Entry 2 of 4)

1 : locoweed

2 : locoism

loco

verb
locoed; locoing; locos

Definition of loco (Entry 3 of 4)

transitive verb

1 : to poison with locoweed

2 : to make frenzied or crazy

loco

adjective

Definition of loco (Entry 4 of 4)

slang

: mentally disordered : crazy, frenzied

Examples of loco in a Sentence

Verb

years of living alone had clearly locoed the old rancher

Adjective

The crowd went loco when she walked out on the stage. He's not just weird, he's positively loco.
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Recent Examples on the Web: Noun

Brunch items range from loco moco to eggs Benedict. Tan Vinh, The Seattle Times, "Loosen your belt: 46 more restaurant and ice cream openings in Seattle and on the Eastside to try," 25 June 2018 Moscow The first week of the 2018 World Cup has produced its share of shocks and upsets, but amid all the nutty results, only one can be regarded as completamente loco. Jonathan Clegg, WSJ, "Mexico’s World Cup Run Is Built on Benchwarmers," 22 June 2018 Those who’ve never been to Hawaii may be unfamiliar with one the islanders’ favorite dishes, the loco moco. Jay Jones, latimes.com, "Where is Hawaii's best beach or best luau? Find insider tips in Hawaii Magazine's 2018 'Best of the Best' issue," 14 June 2018 For breakfast, Makahiki guests can try loco moco, a Hawaiian specialty that includes a mini hamburger served on white rice and topped with a poached egg and brown gravy (somebody alert the cholesterol police). Arthur Levine, USA TODAY, "Disney’s Hawiian resort Aulani offers a melting pot of dining options," 8 June 2018 Or some platillo nopal loco at El Gallo Bravo in Albany Park. Aimee Levitt, Chicago Reader, "Archive Dive / News / The Reefer If you can't smoke weed right now, you might as well read about it," 20 Apr. 2018 Everything costs less than $10, and some things, such as a loco moco (a local favorite that consists of a hamburger patty, fried egg, rice and gravy) or bento box costs only $4. Rosemary Mcclure, latimes.com, "In Kauai, where to eat for cheap: 20 places to chow down for $20," 15 Apr. 2018 The vessel, nicknamed el pato loco (the crazy duck), is just as unique as the greenstone figure in its own endearing way. Christopher Knight, latimes.com, "Teotihuacan: An ancient Mexican city's remarkable art comes to life at LACMA," 18 Apr. 2018 According to the Daily Mail, cameras picked up the Brazilian referring to Holgate as 'loco' and 'filha du puto' ('mad' and 'son of a b***h), while other angles are said to have revealed that the 'n' word was used as well. SI.com, "FA Confirm Receiving Report From Referee Bobby Madley Over Merseyside Derby Fracas," 6 Jan. 2018

Recent Examples on the Web: Adjective

Real investors survey the landscape and look for signs of a market gone loco. Andy Kessler, WSJ, "For Whom the Bell Tolls, Sell," 2 July 2017 As one of my colleagues said, this was straight loco. Ryu Spaeth, New Republic, "Anthony Scaramucci: Harder, Better, Faster, Crazier.," 28 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'loco.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of loco

Adverb or adjective

1786, in the meaning defined above

Noun

1844, in the meaning defined at sense 1

Verb

1884, in the meaning defined at sense 1

Adjective

1852, in the meaning defined above

History and Etymology for loco

Adverb or adjective

Italian dialect, there, from Latin in loco in the place

Noun

Mexican Spanish, from Spanish, crazy

Adjective

Spanish

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Dictionary Entries near loco

locky

Lockyer

locn

loco

loco citato

locodescriptive

Locofoco

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Time Traveler for loco

The first known use of loco was in 1786

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More Definitions for loco

loco

noun
lo·co | \ˈlō-(ˌ)kō \
plural locos or locoes

Medical Definition of loco 

(Entry 1 of 2)

1 : locoweed

2 : locoism

Medical Definition of loco (Entry 2 of 2)

: to poison with locoweed

More from Merriam-Webster on loco

Thesaurus: All synonyms and antonyms for loco

Spanish Central: Translation of loco

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