Noises made by machinery when it's about to die. I usually encounter FunnyNoises as they pertain to cooling fans in computers. There's nothing worse than FunnyNoises coming from your computer, especially when there are two Athlon processors inside that will burn up very, very quickly of one of the fans fails... So listen carefully to your computer! FunnyNoises can be a lot more important than you think! If you have a prebuilt computer, like one from Compaq, chances are that the cooling is not redundant, so if a critical fan fails, you're going down.

Also some noises coming from Peter's desk - burps and such.

Yes, that is correct, I occasionally burp at work. But fuck, you should hear me at home. I can make the walls shake. Alrighty then, moving right along........