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open_door_policy t1_iwj5917 wrote

Reply to comment by mdave52 in 'It's a pretty gross and offensive phrase': SA Premier under fire for 'sloppy seconds' comment by notinferno

Nah, two separate origins. One from aviation, and one from early steam engines/trains. Urban dictionary just has them mixed together.

Steam engines had the pressure regulator with spinning balls on it. Aviation had you pushing the levers all the way to the (fire)wall.

But I'm certain that both of them just retained popularity because they do sound sexual.

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mouse_8b t1_iwj65y3 wrote

> But I'm certain that both of them just retained popularity because they do sound sexual.

Absolutely. I imagine they even started because they sounded sexual. I'm positive everyone in the area snickered the first time someone ever said "balls to the wall".

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