loco(redirected from Locó)
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Rur. completely crazy. (Loco is from a Spanish word meaning "mad.") You're plumb loco if you think I'll go along with that. All those people were running around like they were plumb loco.
in loco parentis(formal)
to be responsible for a child while the child's parents are absent Teachers are in loco parentis while children are at school.
See also: loco
mod. crazy. (From Spanish.) Who is that loco kid jumping up and down in the front seat?
plumb loco(ˈpləm ˈloko)
mod. completely crazy. (Folksy. Loco is from a Spanish word meaning “mad.”) You’re plumb loco if you think I’ll go along with that.