Definitions by Josh from the 'Shack

Shacker 

A non-knowledgable Radioshack employee, or any electronics salesperson who does not know what they are talking about. They like to upsell and dont have a comprehensive knowledge of electronic components

That sales guy was such a Shacker, he didn't even know what an HDMI cable was.

Shacker by Josh from the 'Shack August 6, 2007