Shamone

Shamone comes from the Michael Jackson song "[Bad]" released in 1987. It is a distinctive deliberate mispronunciation of "come on" used frequently by Jackson, occasionally spelt "cha'mone", "jamone" or more commonly "shamone".

Today shamone can be used pretty much the same way "[word]" is commonly used.
> "Come on, man, we're going to the bar. I said, SHAMONE!"
> "Ok, I'm coming."