You don't "got" it.

[Raistlin]

I'm honestly confused. These are all correct, grammatically, aren't they? They may be lazy and could be rephrased with better words, but aren't they correct, regardless? I don't always feel like saying "I OBTAINED the flu last year and it blew chunks."

Using "got" is approximately as correct as using "ain't." Meaning that it's perfectly fine to use it in an informal setting, but such colloquial terms should be avoided in more formal papers.