Slang term for vagina. They are usually pinkish in color and, if not maintained properly, emit an odor that often times is offensive. They are usually moist, though can sometimes be sloppy. They can range from hairless to bushy. Some are neat in appearance, but some are hideous and will give you horrible nightmares. Despite their many downfalls, they are usually quite pleasurable and make a delicious snack.
Person 1: "Dude, why is it that when I kiss you, I taste your sister's passion tunnel?"
Person 2: "Well, now that's because I like to feed her a bunch of pills, then immerse myself in her vaginal delights.."