He flies on a magic carpet and he controls salamis with a magic flute. It is unknown if he is capable of communicating through other means than with his flute, since he has not spoken once in his entire role.
In "Slave the Day" he fought Big Billy by attacking him with salamis. It was no match for Big Billy though, as he could easily chomp all the salamis.
The Salami Swami has not made any other appearances since "Slave the Day".