What is the meaning of Rusty?

Marked or corroded by rust.

Of the rust color, reddish or reddish-brown.

Lacking recent experience, out of practice, especially with respect to a skill or activity.

Of clothing, especially dark clothing: worn, shabby.

Affected with the fungal plant disease called rust.

A gun or in particular an old or worn one.

Discolored and rancid; reasty.

rusty, rusted

degenerate, uncouth

rust-coloured

unpolished, jarring

Source: wiktionary.org