Baubo, first and foremost, represents a portal into this world–the vulva. Portal are aspects of trickster deities, the rabbit is a mythological trickster due to the rabbit hole–the portal into another world; such as the rabbit in Alice in Wonderland. In Greek mythology, Baubo jests with Demeter by pulling Iacchus through the portal, hidden underneath her skirt. The humor associated with tricksters doesn’t distinguish a deity as a deity–the portal is what makes a trickster a trickster. The Coyote’s den makes the coyote a Native American trickster deity. Fox’s, another type of trickster, use a foxhole to escape. In mythology of the Americas, ravens and crows transverse through metaphysical worlds; thereby, marking these birds as tricksters.
All tricksters have a liminal (boundary crossing) aspect. Baubo is the goddess of mirth, but mirth doesn’t make the trickster–the proverbial rabbit hole does the true trick.