It is a new and improved way to say "thrilled". If you are thrillied, you are even more excited than you would be if you were thrilled.
Magghie: Are you excited for the carnival?
Nolan: Of course I am! I'm thrillied!
Eric: When the proselytizing Jehovah's Witnesses came, I answered the door NAKED! It was thrillying!
Nolan: Of course I am! I'm thrillied!
Eric: When the proselytizing Jehovah's Witnesses came, I answered the door NAKED! It was thrillying!
by Magpie Coulton August 18, 2011