The alcohol content of 17.68% in Martin's Rum indicates that it is a moderately strong cocktail. This level of alcohol content suggests that while the cocktail contains enough spirits to provide a noticeable warmth and complexity from the dark rum, overproof rum, and whiskey, it is also balanced with a significant volume of non-alcoholic ingredients like lime, orange, and lemon juices. This makes Martin's Rum an enjoyable drink that offers a balance between the strength of the alcohol and the flavors of the other ingredients.