Flatlander

Andy Morin's true identity.

Stefan: Who's he?
Zach: That's Andy, or Flatlander?

Nonce

A dirty filthy wanker who diddles kids.
Should not be approached without the intention of beating up or restraining to be picked up by police.

Person 1: Hey, hey, hey! Why are you hurting him?
Massive Legend(s): He's a dirty nonce!