User blog comment:Lord Loss/Monster Hunter Frontier Season Forward 5/@comment-4009941-20130206082334/@comment-1712810-20130206092557

Well... I suppose we'll sort of have to if there really aren't any official terms... we can't just call them both "Uknown" Lavasioths cuz there's two of em... I honestly can't think of anything better right now...

From that short video you posted it seems these two enjoy surprising each other with underground attacks... that's pretty goofy and random... I guess the devs just thought it was funny...