Words made up by loser, loner internet geeks for a mildly popular web-site called 'Urban Dictionary' in a vain attempt to seem witty or clever. It hardly ever works.
(Kinda like this)
Loser: Happy Amazonukkah!
Friend: What the hell is that? Some kind of made up word?
Loser: Yeah! It's urbandictionaryalese, don't you speak it?