DictionarygizmoSmall device
noun

gizmo

GIZ-moh/ˈɡɪzməʊ/

A small device whose name is unknown or unimportant.

The little gizmo has a rounded casing, turning knob, and hinged clip.

A single palm-sized, unnamed gadget with a rounded casing, a small turning knob, and a hinged metal clip, isolated on white ground.
Etymology

Gizmo is recorded in Marine and Navy usage for something the speaker could not name. Its origin is unknown, though it may have been a made-up word.

In context

CZsWorld7:21
A slang term for a gadget, is a gizmo -- which happens to be the name of our poster boy for this movie.
54 Things You Missed™ in Gremlins (1984)

More examples

  • What does that gizmo attached to your key ring do?
  • She keeps a drawer full of kitchen gizmos.
  • I use a plastic gizmo to squeeze toothpaste from the tube.

Forms

gizmo · gizmos

Similar words

gadget
Gadget emphasizes a device's practical function, not its unknown name.
doohickey
Doohickey is a more playful placeholder for an unnamed device.