The trickster is an archetype that appeared in the myths of many different cultures and is still popular with writers today. These characters are rule-breakers and agents of chaos; they are often animals (e.g. foxes, crows, coyotes), travellers, or even shapeshifters able to cross boundaries between worlds. For this reason they sometimes function as a guide or messenger, like the Greek god Hermes. Characteristically, the trickster is clever and creative. They generally lie to obtain sex, food, or just to get out of something they don’t want to do, using their wit to outsmart of the Man/the Establishment/the gods/what have you.
Since they are so unpredictable and paradoxical, it can be difficult to pinpoint exactly what the perfect definition of a trickster is. As Lewis Hyde puts it in Trickster Makes This World: Mischief, Myth and Art:
[The] best way to describe trickster is to say simply that the boundary is where he will be found – sometimes drawing the line, sometimes crossing it, sometimes crossing it, sometimes erasing or moving it, but always there, the god of the threshold in all its forms.