Bahama Mama Cocktail

This is another in a series of recipes brought to us by my eldest son, who has been making a new cocktail each week.  this one is great--and while it can stand up to other umbrella drinks, it doesn't need the decoration.

• 1/4 fluid ounce coffee-flavored liqueur  
• 1/2 oz.  dark rum
• 1/2 oz. coconut liqueur
• 1/4 oz. 151 proof rum
• 1/2 lemon, juiced
• 4 oz. pineapple juice 

Mix and serve with a cherry if so desired.