It’s an old drink from the 30’s that interestingly doesn’t appear in Harry Craddock’s Savoy Cocktail Book but the Cafe Royal Cocktail Book. The name is apparently a reference to the phrase shaking the Lion’s Tail (i.e. messing with Britain), which makes sense given its Parisian origins. You have some similarities to a sour and the tiki world, fwiw. But I digress…
2 oz. bourbon
1/2 oz. allspice dram
1/2 oz. lime juice
1 tsp. simple syrup
2 dashes bitters
Shake well over ice and serve up.
You may have to look for the allspice dram, but the original, St Elizabeth, should be easy enough to find