Anderson 360 interview, and Daily Show blurb (featuring fellow trainer Thomas Roltsch).
Lets examine Shirvell's most recent Pokedex entry:
"Shirvell, the biggot Pokemon. Shirvell evolves from the childhood-bully Pokemon Shrivley when it no longer understands how the real world functions. Its bullying can only be stopped by questioning its interpretation of its first amendment rights, causing it to become confused. Shirvell are known to live in tall grass outside the homes of young homosexual men. Shirvell's mental status and sexuality are still unknown."
It's next evolution is unknown as of yet, but I hope we find out soon, in the name of the Pokedex!