WordWeb Online

1. Informal or slang term for mentally irregular
   "it used to drive my husband loco"
   - balmy [archaic], barmy, bats, batty, bonkers, buggy [N. Amer], cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky, daft as a brush [Brit], wacko, round the twist [Brit]
    
2. Of or relating to locomotion
   - locomotive, locomotor

1. A wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks
   - locomotive, engine, locomotive engine, railway locomotive [Brit, Cdn], railroad locomotive [N. Amer]

Derived forms: locos

See also: insane

Type of: self-propelled vehicle

Part of: railroad train [N. Amer], railway train [Brit, Cdn], train

Encyclopedia: Loco, OK Loco Loco, Switzerland Loco, Oklahoma