Yes, one of them is fruitcake.
So what exactly comprises a no good, very bad Christmas present? Metaphysically, it inspires disbelief or disgust. Physically, your tongue is tied and you hold the offending item as far from your heart as you can as you manage to emit a “thank you” in a squeak that sounds like a rat being constricted by a python. And beyond that, it might just be one of the following dozen items which you never, ever should give, and which you never, ever should wish to receive.