rusty

When you want to say that your English is not good as it used to be, is it correct to say "I am a bit rusty?". I've heard someone using that expression and it sounded weird to me. I thought that "rusty" could not be used to characterize someone, but only to charaterize a skill, like in "My English is a bit rusty".
Please, if you spot any mistakes in my post, feel free to correct me...

Hi,

As long as the person you are speaking to knows that you are referring to your English skills, it is perfectly acceptable to say "I am a bit rusty".

If you haven't had sex for 5 years, you'll be a bit rusty!!!!!!!!

it never happens to me, don't worry!!!

It is happening to me, I'm 23 - although I don't even have the pleasure of being rusty as I don't have any benchmark with which to measure myself.

So? what's the problem?

"I'm a bit rusty" is perfectly fine. I say it all the time.

Yes, it's an odd construction, but things we say don't always make sense. :)

- Kef