A stealth bomber is a rarely practiced sexual act in which one partner deficates into a camoflauge condom and ties it on the open end, thereby creating a semi rigid striking tool. The partners (or group, if so desired) then take turns striking each other in the face with the excrement-stuffed condom until it bursts.
"Bro, Cindy and I did the stealth bomber last night. I've got like 18 purple mushrooms on my face. At least my hair doesn't smell like shit though."