This page is about the slang term loco


crazy, insane

For example

  • I'm sure the new tenant in Apartment 4 is loco. I heard her screaming something about little green men coming in through her window.

  • My cousin Jill went a bit loco after she'd had her third child, but she's much better now.

This word is not politically correct, and many people might find it offensive. A more politically correct term is "mentally ill".

Origin: "loco" is the Spanish word for insane, and it was first borrowed into English in the late 19th century

Quick Quiz

If your friend is going a little bit loco, you could suggest they

a. travel on trains less

b. try to eat less

c. see a psychiatrist

Slang of the Day

Contributor: Matt Errey