During sexual intercourse, this is when the man is thrusting at such a high rate of speed, that his hips look like he is on a ten speed road cycle, going downhill, with no brakes, on cobblestone.
"Man y'all sure were loud last night! Especially Karen!"
" yea sorry bout that, I was cobblestoning her...she loved it"
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".