The Bee’s Kees is a Prohibition-era cocktail featuring gin, lemon juice and honey. The unique name is a convention of the time: The phrase “bee’s knees” was popular slang used to call something excellent or outstanding.

The drink is credited to Frank Meier, an Austrian-born bartender who plied his trade at the Hôtel Ritz Paris during the 1920s. It’s a simple extension of the classic Gin Sour (gin, lemon, sugar) that features honey instead of sugar. The honey creates a richer drink, and it may have been employed to mask the taste of subpar gin, which was prevalent at the time.

Référence : https://www.liquor.com/recipes/bees-knees/