How to add emphasis to sentences
Personally, I find Mandarin rather unsuitable for a sentence like this.

(Note that the sentence "gimme yo cheese!" sounds ridiculous in English.)

When I think about the formal nature of standardized Mandarin, I can't help but dream up a sentence like: 请把你的奶酪都给我吧

Of course, this sentence sounds pretty silly, and the 请……吧 pattern has an effect opposite of what you wanted. Ending a sentence with 啊 (or one of its similar sounding particles, e.g., 哎) would do the trick.

As suggested above: 交出你的奶酪啊！ is good.

That said, I think you'd end up with better results if you resorted to a dialect (just like "gimme" is not standardized English).

As a more aggressive alternative in Mandarin, you could try: 赶快把(所有的)奶酪都给老子交出来！

This basically sounds like you are robbing someone for their cheese, which would have had the humorous effect you intended (judging by your described context), but it'd be tough to imagine an appropriate real-life scenario in which to employ this vocabulary.

...Unless you were really trying to rob somebody: 把值钱的东西都给老子交出来啊！

Disclaimer: Don't steal! Don't rob! 构建和谐社会！