Sorry, fans--but the second half is where I drew the line on Billy and Mandy and wanted to stop watching it until Wrath of the Spider Queen and Big Boogey Adventure. In essence, the second segment of this episode is in short a long string of Yo Momma jokes, peppered with Goodbling, which was funny the first few times, then got REALLY annoying. The hippo-sidekick only made Goodbling even MORE annoying, and the fact that Irwin couldn't talk "gangsta" when we've heard him say it before was just ridiculous. Worse, the entire plot, including the non-twist of Irwin's grandma being the one up against Goodbling made me think the writers just ran out of ideas; the culmination of which was a long, irritating string of Yo Momma jokes that made me stare at the TV in horror.
This episode pair disappointed me, really, and I expected better from a show that lasted for seven seasons. Skip this episode, watch the older seasons or the last two movies.