Smirnoff is popping up and bringing the Latin vibes to London’s Southbank this May Bank Holiday weekend to showcase their latest product, the Smirnoff Spicy Tamarind Flavoured Vodka, by simply giving it away in the form of free Smirnoff Spicy Margaritas. The Smirnoff Spicy Tamarind Airstream will be serving Smirnoff Spicy Margaritas. Guests will be able to immerse themselves in the spirit of Cinco de Mayo so they can sit…