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 original Fitzgibbons, who famously laughed at his students when they left an exam review because he wouldn't give them the answers.
by somegoof January 17, 2005