What is Birthday Cake Kush Birthday Cake Kush, also known as Wedding Cake or just Birthday Cake, is an indica-dominant hybrid with strong body effects and sweet cake-like flavor. As decadent as its Girl Scout Cookies and Cherry Pie parent strains, Birthday Cake Kush buds bloom with a crystalline icing of THC-rich resin. Like any dessert, Birthday Cake Kush is the perfect way to end your day, with deeply relaxing effects that soothe the body without sedating the mind. This indica is preferred by patients treating pain, anxiety, appetite loss, inflammation, and headaches.