Method:Carefully remove the stalks and slice the cherries into halves to remove the pits. Add the flesh to your cocktail shaker and muddle. Add the rest of the ingredients except the lemonade to your shaker, add ice and shake away. Fine strain over ice into a highball glass before topping with lemonade, and garnish with a slice of lemon and a pair of cherries.
'Barbed is a play on the rhu"barb" element.