The act of dropping out of a trip or group activitylast minute without notice. Doing so with complete disregard to personal or friends financial losses.
"Where is Martinez?" "I don't know, he mentioned not coming because of his girlfriend being lonely, he's totally pulling a Greg."
"Where is the last groomsman?" "He hasn't answered any texts, he's probably pulling a Greg."
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".