Casio Keyboard

Casio Keyboard is a term used by Ghost, that is essentially the musical equivalent of the 386SX computer and Obamaphone. Ghost uses the term to describe various poor attempts by callers at playing keyboard during his show and either at the caller, his poor keyboard or (in most cases) both. The term became popular at some point during the 2016 era when large amounts of poor quality keyboard players, usually trying to imitate more successful musicians in the show like Xarahox, Fulsy and Godzilla3709 began calling the show, attempting to impress or troll Ghost with their musical talent to no avail.

The Guitar equivalent of this is the "2-chord playing jerk dick".