Loco

adj, adv, noun, verb, slang

Definitions

Adjective
  1. 1
    Crazy. colloquial

    "It's Cottontail Smith, and he's gone plumb loco!"

  2. 2
    Intoxicated by eating locoweed. Southwestern, US
Adjective
  1. 1
    informal or slang terms for mentally irregular wordnet
Adverb
  1. 1
    A direction in written or printed music to be returning to the proper pitch after having played an octave higher or lower. not-comparable
Noun
  1. 1
    A certain species of Astragalus or Oxytropis, capable of causing locoism.
  2. 2
    A locomotive. informal

    "A locomotive is, next to a marine engine, the most sensitive thing man ever made; and No. .007, besides being sensitive, was new. The red paint was hardly dry on his spotless bumper-bar, his headlight shone like a fireman’s helmet, and his cab might have been a hard-wood-finish parlour. They had run him into the round-house after his trial—he had said good-bye to his best friend in the shops, the overhead travelling-crane—the big world was just outside; and the other locos were taking stock of him."

Verb
  1. 1
    To poison with the loco plant; to affect with locoism. transitive
  2. 2
    To render insane. broadly, colloquial, transitive

    "They say that he is locoed. The insane asylums of California contain many shepherds."

Etymology

Etymology 1

From Italian.

Etymology 2

From Spanish loco (“insane, crazy; loose”).

Etymology 3

From Spanish loco (“insane, crazy; loose”).

Etymology 4

From Spanish loco (“insane, crazy; loose”).

Etymology 5

Clipping of locomotive.

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