Several decades ago, there was a story arc about Superman living far into the future. One issue’s cover showed him saying (approximate quote): “I’m ten thousand years old … and stronger than ever! Even green kryptonite chains can’t restrain me anymore!” (He was breaking the chains as he said it.) “All my friends are dead! When will I die?!”
One of a panel of scientists tells him, “Never, Superman! Our tests show that you’ve become immortal!”
But wait! There on the horizon! It’s a bunch of small birds, led by a beagle, all wearing kepis! “Here’s the world-famous Sergeant Major of the French Foreign Legion, coming to save the day….”
Considering that violin strings were traditionally made from “catgut,” the dog might like to hear that (although, if Wikipedia can be trusted on this one, it wasn’t actually the intestines of felines that were used). A TV cartoon from way, way back featured a cat who dreaded the possibility he’d be sent to “the violin factory.” At the end, he played Chopin’s Funeral March on a violin, then fell backwards into a violin case that closed on him….
When I Googled it, the consensus seemed to be that it originally referred to tucking the long skirt of a tunic or robe into your belt (known as a girdle before that became an undergarment) so all that fabric wouldn’t get in the way while you did something such as fighting, running away, heavy manual labor, etc. Now it just means getting ready for something difficult.
“Oh, no! That crazy, mixed up werewolf is mooning at the bay again!”