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Boob tube
From WikiPedalia
A television set. (Boob: "A stupid or foolish person; a dolt" (who watches too much TV); Tube: the cathode ray tube of a TV receiver.)
Some misguided souls use this term to describe the keel tube of a tandem frame. This makes no sense semantically. It probably arose because somebody couldn't think of one of the several more descriptive terms, and picked something cute-sounding out of the air. It is to be hoped that this foolish term will disappear into the dustbin of history.
