A person who readily dedicates their occupational existence to the sale and resale of anything but a good tune (groove). Thus, "groovemonger" is an oxymoronic term that is rather general in its persuation (meaning).
I think I'll visit the groovemonger because he has nothing to offer me but his lack of identity - and I like that.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".