This cocktail got its name from 1920’s slang that simply meant “the best” or “cool” along with a host of other parallel constructions, including the flea’s eyebrows, the canary’s tusks, the cat’s pajamas, the snake's hips, the dog's tuxedo, the eel's ankle, the elephant's instep, the snake's hip, and the caterpillar’s spats.
To make honey simple syrup: combine ½ cup of water and ½ cup honey in a small saucepan. Heat over medium, whisking often, till the mixture reaches a slow simmer and the honey is liquid and smooth. Remove from heat and cool to room temperature.
Preparation Shake with ice, strain into a chilled cocktail glass, and serve.