It could mean that in a fan - created fictional story (fanfiction), Merlin is somehow related to Arthur in the context of a toy. Maybe it's a story where they are characters in a toy - based world, or perhaps Merlin is a toy that belongs to Arthur in this fictional scenario.
For instance, in a 'merlin is arthur toy fanfiction', Arthur is a lonely child and he receives a Merlin - like action figure as a gift. This action figure is no ordinary toy. It has a mind of its own. At night, when Arthur is asleep, the toy Merlin comes to life and starts to clean his room, organize his books, and even leaves little notes with wise words. As Arthur grows up, the toy Merlin continues to be his secret helper, guiding him in his studies, his relationships, and eventually in his journey to become a great leader.
One great female Merlin fanfic could be one where she uses her magic in unique ways to save Camelot. For example, in a story she might use her powers to heal the knights secretly when they are injured in battle. This would add an interesting twist as she has to hide her actions from Uther.
If Merlin died in the fanfiction, it could trigger a series of tragic events. The balance of power could tip, and the villains might seize the opportunity to attack. It could also bring out hidden strengths in the remaining characters as they try to cope with the loss.
In a more humorous take on the 'Merlin tied to a bed' fanfiction, it could be that Merlin has fallen ill and the overly - protective Gaius has tied him to the bed to make sure he rests. Merlin, being the active person he is, complains constantly. Arthur comes to visit and teases Merlin about finally being still for once. Meanwhile, Merlin tries to convince Arthur to let him loose, promising that he'll be fine. Eventually, Gaius relents and unties Merlin, who then immediately starts bustling around the room.
Perhaps in this fanfiction, there's a mystery that only Toy Freddy and Toy Bonnie can solve. There could be strange noises coming from the backroom at night. They decide to investigate. Toy Freddy uses his built - in flashlight to light the way while Toy Bonnie listens carefully for any signs of danger. As they explore deeper, they start to uncover secrets about the pizzeria that they never knew before.