Pronounced with a frog like accent, rreeerr-berts, is a creature who tends to nark on everybody, known for its "lurking" ability it watches and waits in the shadows of ppl cooler than him. A rerbert often tries to become cooler, i.e. by lying about his habits with substances
Chastity: Yoh! lets go to that island party.
Ballison: Idk I hear Rerberts is going to be there, wild st fari
Cpt. Jack sparrow: NO!NO!NO!