what are the best phrases to listen for when talking to a guitar center employee

Im having a conversation with the sales rep right now and I want to make sure he's knowledgable. These are some things he's mentioned so far:

Scooped mids

Lush choruses

Creamy gain

Stormy treble

Musical lows

Also does anyone know what mojo is or how it's measured? He keeps asking me if my rig has a lot of mojo.