I would ask Aradia Megido or Nepeta Leijon. Of the five trolls left here, they are probably the two who would probably be the most willing to explain it. [He...honestly can't see Sollux doing it, Tavros is too timid, and Eridan is...Eridan.] Though Nepeta likes to use cat puns, so if you want a clearer, pun-free explanation, go with Aradia.