Petroleum jelly won't "eat the plastic" that you couldn't get to. You might try some sand paper, or an exacto blade, depending upon where it is.
I'm not sure if you know, but the active ingredient in nail polish remover is a solvent for super glue. So you might be able to "un-glue" it and start from scratch. Be cautious though, as the acetone in the nail polish remover will probably eat the plastic if you let it stay on for too long.
Finally, just a suggestion: Using real English words, capital letters, and punctuation makes it much easier to read what you write. "Oh Noes!" might look cute, but it's not effective communication. I'm not trying to be harsh; just telling you the reality that the written word is an important life skill and "net speak" gibberish won't help you be an effective communicator.
Brian.