Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. Informal An unnamed gadget or trinket.
Wiktionary
- n. A thing (used in a vague way to refer to something whose name one cannot recall)
GNU Webster's 1913
- n. Any object, usually a tool or other device, whose name is forgotten, or not known.
WordNet 3.0
- n. something unspecified whose name is either forgotten or not known
Etymologies
- Perhaps doo(dad) + hickey.
Examples
“Get Help: Need to replace a part of your toilet but have no idea how to describe it to the person at the hardware store without using the word doohickey?”
“I believe "doohickey" is the correct technical term for that particular control.”
“Training ones either have a plastic or rubbery doohickey attached at the apex of the chopsticks or are actually attached.”
“So, here we have President Malcom J. Roebuck telling me, with a look of dead-eyed seriousness, that I can make $25 to $100 per hour by making and selling "metal pin-back badges" made with his $35 button crimper doohickey.”
“(Assuming the embedded doohickey works; it seems to be a bit temperamental right now.)”
“And, no, I don't know why the embedded doohickey cuts off the last few seconds of the song.”
“That's due to my genius brother-in-law Reed Richards, Mr. Fantastic, the leader of the FF, and his universal translator doohickey.”
The Huffington Post: Robert Brenner: "Flame Off!": Hosni Mubarak and the Human Torch
“Mine definitely has the musical greetings-card-style doohickey installed as Chris and Allison and meself agreed.”
“Anyway, I stuck it up on the fileshare site I normally use, for this chap to download, so I thought I may as well, punt one of the embedded doohickey things up here, for anyone what's cracked enough to want a copy, or who has a spare thirty-five frickin minutes to listen to me play at being a pirate.”
“The words she spoke afterward were even more hurtful than the concussion Don might have incurred if that desktop doohickey had actually made contact.”
The Washington Post: 'Mad Men': Who was this week's empowered heroine -- Allison or Peggy?
Lists
These user-created lists contain the word ‘doohickey’.
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Americanism
American words
finest, fast food, acclimate, aluminum, alphabetize, airplane, affirmative action, arugula, backhoe, bangs, base board, bayou and 162 more...
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Nincompoopery
Words that clatter and tumble
nincompoop, pettyfoggery, gaberlunzie, cattywampus, weisenheimer, katzenjammer, hecklephone, loblolly, carriwitchet, flibbertyjibbet, hornswoggle, thimblerigger and 159 more...
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Sounds often heard during a search for a hard t...
um, er, hmm, ah, well, �?��?��?�, erm, uh, um-um-um, ehm, anu, gizmo and 11 more...

jmjarmstrong JM offers the warning - beware of oojahs, thingumabobs, doohickies and whatchamacallits as objects without proper names are never to be trusted. Feb 1, 2009
slumry wotsit Jul 25, 2007