What Actually Is Bubble Gum Flavor?

If you were ever a kid, then odds are, you know what bubble gum tastes like. Its flavor has been used in everything from jelly beans to ice cream to lip balm, but most of us would still be hard pressed to explain what that flavor is. Go ahead - try and describe it without using the words "bubble gum." So, what the heck is it supposed to taste like? And where did it come from anyway?