<abbr> Manchester United Fan In Name Only. A person who claims to be a die-hard supporter of English Premier League club Manchester United, when in fact he has no clue about the game.
Manchester United's string of successes mean it has legions of fair-weather fans who would dump the club at the first sign of trouble. They're MUFINO!
by Sandy Fern March 31, 2009
1 more definition
Top Definition
Manchester United Fan In Name Only. An acronym coined by Sanish Fernandez (word surgeon in Bangalore, working for a rather large IT firm)
"That Joe, he's a MUFINO: when the Mancs win 1-0, he comes out screaming, thumping his chest, but as soon as one of the London teams start to lead, he declares them champions-elect."
by Joke Hole March 31, 2009

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