Sleipnir O’Hara/Mad

Auxiliary Kaja Avatar
In terms of ethnic extraction, Sleipnir's first name is Norse and her last name is Irish. The same was true of Professora Foglio (her maiden name being Murphy). This suggests that Sleipnir, who is involved with the plot — where the actual "Prof. Kaja Foglio" so far is not — may function as an avatar of Kaja Foglio as well.

Outside Information the Possible Relevance of which is Even More Remote
In the myth relating the procreation of Thor's eight-legged horse, Sleipnir, the horse's sire is Svaðilfari, a stallion belonging to an unnamed rime (frost) giant, but his dam is the god Loki (who had taken the form of a mare, obviously in estrus, in order to hinder the giant).