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Use "thingie" in a sentence
"The little beeper thingie is a lot more socially acceptable."
"This pinata thingie is nothing more than hanging somebody in effigy."
"When you've been in the blogging business as long as we have - as much as an advertising-free blog can be called a "business" - you pick up a little bit of the lingo and "cozy little blog thingie" is the official textbook definition."