It would only be a somewhat far-fetched comparison if we were to say that the pun is related to the witticism as the parabola (sic) of the upper inverted cone to that of the lower.
Konparazio bilatuegia izango litzateke, agian, hitz-jokoa graziarekiko goiko kono alderantzikatuaren hiperbola behekoarekiko dena horixe bera dela esatea.