Dirty Girl Scout #1
1 oz. Baileys Irish Cream (more Baileys Irish Cream drinks)
1 oz. Vodka (more Vodka drinks)
1 tsp. Green Creme de Menthe (more Green Creme de Menthe drinks)
1 oz. Kahlua (more Kahlua drinks)
Shake with ice and strain into an old-fashioned glass. Garnish with an orange slice.