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Use "dohickey" in a sentence
"With all the lingo of dohickeys, thing-a-ma-gigs and bobs or thing-a-ma-bobber-dohickey-thingys so the average military wife understands; P ... with illustrations, before during and after."
"If your dohickey doesn't read .pdf files, you can find a converter online."
"I can't speak to florescents, but a high-school friend had a very nice sheet cake with plastic hat dohickey in a corner with her photo printed on it."