"What happened to that wall Billy?" said mother
"Oh I'm not sure..." he replied furtively
"Did you do it you fucking wallhead! Die wallhead die! I hope you rot in hell! You son of a wall! Aaaaaahhhhhhhhh" She said calmly.
"Hey wallhead what you up to today?""Oh nothing, just putting my head through walls..."
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".