literal definition is someone who takes credit for someone else’s fart
Also someone who steals your thunder or someone who takes credit for someone else’s work
I worked so hard on that project and Vincent stole all the credit even though he hardly did anything. He never even mentioned my name. He’s such a fartnapper!
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".