Slang for 'a Fitzgibbons'. Rumor has it that a drunkard couldn't pronounce the 'bb' part of the name correctly and the word was coined. Referring to someone as "a Fitzginnons" is meant to insult by assosiation with the originalFitzgibbons, who famously laughed at his students when they left an exam review because he wouldn't give them the answers.
John was a real fitzginnons for not doing the prized athlete's homework for him.
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".