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Traffic boners are on the way out!, October 2, 1939
(lemmy.world)
For sharing images of vintage magazine ads, fliers, promos, etc.
We're going to play it pretty loose with timeframe here so please don't get offended anyone :)
More generally, “blunder” or “mistake.”
There are a lot of old comics that used “boner” in this way. See Joker’s boner as a classic hilarious example.
A local radio station has a morning show segment called "boner of the day," which presents three idiots and the hosts pick one (or maybe a caller, I forget) to "win". They're usually people from the news (like Florida man) doing something incredibly dumb or messing up hard.