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loco

[loh-koh] /ˈloʊ koʊ/
noun, plural locos.
1.
2.
Slang. an insane person; maniac.
3.
Veterinary Pathology, locoism.
verb (used with object), locoed, locoing.
4.
to poison with locoweed.
5.
Slang. to cause to be insane or crazy.
adjective
6.
Slang. out of one's mind; insane; crazy.
Origin
1835-1845
1835-45, Americanism; < Spanish: insane

in loco

[in loh-koh] /ɪn ˈloʊ koʊ/
Latin.
1.
in place; in the proper place.
Origin
1700-10

in loco parentis

[in loh-koh pah-ren-tees; English in loh-koh puh-ren-tis] /ɪn ˈloʊ koʊ pɑˈrɛn tis; English ɪn ˈloʊ koʊ pəˈrɛn tɪs/
Latin.
1.
in the place or role of a parent.

loco citato

[loh-koh ki-tah-toh; English loh-koh sahy-tey-toh, si-tah-toh] /ˈloʊ koʊ kɪˈtɑ toʊ; English ˈloʊ koʊ saɪˈteɪ toʊ, sɪˈtɑ toʊ/
Latin.
1.

loco primo citato

[loh-koh pree-moh ki-tah-toh; English loh-koh prahy-moh sahy-tey-toh, pree-moh si-tah-toh] /ˈloʊ koʊ ˈpri moʊ kɪˈtɑ toʊ; English ˈloʊ koʊ ˈpraɪ moʊ saɪˈteɪ toʊ, ˈpri moʊ sɪˈtɑ toʊ/
Latin.

loco supra citato

[loh-koh soo-prah ki-tah-toh; English loh-koh soo-pruh sahy-tey-toh, si-tah-toh] /ˈloʊ koʊ ˈsu prɑ kɪˈtɑ toʊ; English ˈloʊ koʊ ˈsu prə saɪˈteɪ toʊ, sɪˈtɑ toʊ/
Latin.
1.

suo loco

[soo -oh law-koh; English soo-oh loh-koh] /ˈsʊ oʊ ˈlɔ koʊ; English ˈsu oʊ ˈloʊ koʊ/
Latin.
1.
in one's own or rightful place.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for loco
  • And, a concerned parent who thinks the kids have gone loco has scuttled many a sale.
  • Object, such as a trailer, fouling right-of-way of loco-motive.
British Dictionary definitions for loco

loco1

/ˈləʊkəʊ/
noun
1.
(informal) short for locomotive

loco2

/ˈləʊkəʊ/
adjective
1.
(slang, mainly US) insane
2.
(of an animal) affected with loco disease
noun (pl) -cos
3.
short for locoweed
verb (transitive)
4.
to poison with locoweed
5.
(US, slang) to make insane
Word Origin
C19: via Mexican Spanish from Spanish: crazy

loco3

/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
Word Origin
C20: from Latin locō from a place

in loco parentis

/ɪn ˈləʊkəʊ pəˈrɛntɪs/
uknown
1.
in place of a parent: said of a person acting in a parental capacity

loco citato

/ˈlɒkəʊ sɪˈtɑːtəʊ/
uknown
1.
in the place or passage quoted Abbreviation loc. cit, lc
Word Origin
Latin: in the place cited

suo loco

/ˈsuːəʊ ˈlɒkəʊ/
adverb
1.
(mainly law) in a person or thing's own or rightful place
Word Origin
Latin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for loco
adj.

1844, American English, from Spanish loco (adj.) "insane," of uncertain origin, perhaps from Arabic lauqa, fem. of 'alwaq "fool, crazy person." Loco-weed (1877) was name given to species of western U.S. plants that cause cattle and horse diseases that make them stagger and act strangely.

in loco parentis

Latin, literally "in the place of a parent" (see parent).

Online Etymology Dictionary, © 2010 Douglas Harper
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loco in Culture
in loco parentis [(in loh-koh puh-ren-tis)]

To assume the duties and responsibilities of a parent: “Because Jack's parents were out of town, his sister acted in loco parentis and punished him for staying out so late.” From Latin, meaning “in the place of a parent.”

Note: At one time, colleges and universities acted in loco parentis for their students, but this is no longer true.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Slang definitions & phrases for loco

loco 1

adjective

Crazy; nuts: He took one look and just went loco (1887+)

noun

: She's acting like a loco

[fr Spanish, ''insane'']


loco 2

noun

A locomotive (1940s+ Railroad)


The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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