I told the misses I was going to take her for a nice meal on her birthday for months but I don't fancy it so I'm pulling a Corbyn and staying in instead.
"I can build this ikea wardrobe in a hour" 4 hours later as you have a mental breakdown you think to yourself "Im pulling a Corbyn, should have just paid for the assembly service".
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".