most of the drinks that cocktail umbrellas are found in are tropical drinks. however, they are not all tiki drinks, as some would call them. to be considered a tiki drink, the cocktail must contain rum and exotic fruit juices. following this definition, drinks such as pina colodas would be considered tiki drinks, but ones like the hawaiian margarita would only be considered tropical. this is due to the fact that the hawaiian margarita contains tequila instead of rum.