Somebody who stands in a pose at the sides or back of a gig or party, stroking their chin in a misguided attempt to appear being disaffectedly engaged in and/or disapproving of the music currently being played.
Don't bother trying to get across to the bar over there, that entire corner of the room is infested with chinstrokers
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".