What distinguishes a “straight up” cocktail?

A "straight up" cocktail is characterized by being served chilled without any ice in the glass at the time it is served. This method ensures that the drink maintains its flavor profile while allowing for the best drinking experience. The cocktail is typically shaken or stirred with ice first to chill it, and then it is strained into a glass, leaving no ice to dilute the drink.

Options that suggest serving with ice or at room temperature do not align with the definition of a “straight up” cocktail. A serving at room temperature contradicts the traditional presentation of cocktails designed to be enjoyed chilled, while serving with ice would introduce dilution and temperature changes that alter the intended flavor balance. Shaking the cocktail with ice is a preparation step, but the defining factor is how the finished product is served – specifically without ice.