Which cocktail is characterized by a splash of lime juice and vodka?

The cocktail characterized by a splash of lime juice and vodka is indeed the Kamikaze. This drink typically consists of vodka, triple sec, and lime juice, creating a refreshing and tangy flavor profile. It is often served as a shot, highlighting the quick and potent mix of the ingredients.

In contrast, the Gin Gimlet contains gin and lime juice, but it does not include vodka, making it distinct from the Kamikaze. The Negroni is a classic cocktail that combines gin, Campari, and sweet vermouth, showcasing a completely different flavor profile and liquor base. Lastly, the Sicilian Kiss features amaretto and Southern Comfort, lacking both vodka and lime juice altogether. Therefore, the Kamikaze stands out for its specific combination of vodka and lime juice, making it the correct answer.