Kirk in admittance to being an erotic adventurer of the most deranged kind, in the episode "Nanageddon"
Kirk is fictional character portrayed by Kirk Gaitskell-Kendrick (Kirk is a nephew of Noel Fielding's ex-girlfriend Dee Plume, although Noel does refer to Kirk as his own nephew).
Kirk is a child Shaman, and a member of the Board of Shaman. He has admitted to being "an erotic adventurer of the most deranged kind" from the fourth dimension, and a "vehicular menace, mowing down all in [his] path". Kirk is renowned by the other members of the Board of Shaman for having the greatest capacity for taking drugs.
A deleted scene from "Nanageddon" reveals that Saboo trained Kirk in the ways of the Shaman, specifically to be "a loose cannon".