Being 'pressed' into doing something you don't really want to from press gangs maybe. Just an idea but I'm not sure on that one 

I've heard more than once that this is not as 'cut and dried' as people thinkDon't get me started on naval expressions
"Room to swing a cat" of course refers to the whip, not the moggy. Small ships (less than ships of "the line") didn't have "room to swing a cat (o' nine tails)"
Red
A "flash in the pan" describes the situation where the priming charge in a flintlock didn't transfer to the main charge - either because the touchhole was blocked or becuase the main charge hadn't been placed in the barrel. (Done this). It means the appearance of danger (the flash) without the reality (the main charge igniting)
Being 'pressed' into doing something you don't really want to from press gangs maybe. Just an idea but I'm not sure on that one![]()
In days gone by, the way they cleaned chimney's was to climb on the roof and drop a live goose down it. It flapped on it's way down and this cleaned the flue. However, geese were expensive, so you tended to look after your's. If you did not, however, remember to extinguish the fire in the hearth, your 'Goose would be cooked'!![]()
'Letting the cat out of the bag' so I've been told, referred to what happened before a flogging. Once a sailor had been sentenced to so many lashes, he would have been issued with a length of rope and, in his spare time, would have had to make a 'cat o' nine tails'. The 'cat' would be inspected by the Bosun, and if it was not properly made, including the prescribed number of knots in each tail, the Bosun would make one. This was a bad thing, because if the Bosun had to make one, he got pretty pee'd off and would include bits of broken glass and small nails in the braid of the rope, so it'd take the skin off your back.
Anyway, it wasn't always convenient to serve out lashes on the day of the conviction and sentencing, so the 'cat' would be placed in a bag and hung somewhere on deck for everyone to see. On a day (sometimes weeks later) decided by the Captain, First Officer or someone appointed by them, when a flogging could take place without too much disruption to a ship's company, the 'cat' would be hung out of the bag, the tails trailing over the side letting everyone including the poor miscreant, that today was the day. The waiting could be worse than the actual flogging, and I've been told that after the first dozen lashes you don't really feel the lashes, just a continual pain until it stops.
Anyway, 'letting the cat out of the bag' meant somebody was soon to be in deep doo-doo's.
Eric
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The nipper was a temporary connecter, used for hauling the main anchor cable.
The cable, because of its size couldn't go around the windlass drum and had to be hove-in on a continuous messenger which could go around the drum.
The nipper held the cable ,hard-to , the moving messenger and was tended by a nipper boy, who released it after a fleet of cable was hauled aboard...then the pore bu88er ran back forrad and threw-on another connection.
Ceeg