from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A small specialized mechanical or electronic device; a contrivance.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a thing whose name cannot be remembered; thingamajig, doohickey
- n. any device or machine, especially one whose name cannot be recalled. Often either clever or complicated.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a device or control that is very useful for a particular job
Origin unknown.(American Heritage® Dictionary of the English Language, Fourth Edition)
Unknown. First used in print by Robert Brown in 1886 (see quote in definition section). Might come from French gâchette or gagée. (Wiktionary)