A major fight with heavy promotion (in boxing, wrestling, etc.).(noun)
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Use "megafight" in a sentence
"If not for a nasty dispute over blood testing, it might have filled Cowboy Stadium and given Jones the kind of megafight he believes his new $1.2 billion edifice rightfully deserves."
"In an event that's being hyped - accurately - as the first "megafight" of the year, Antonio Margarito puts his welterweight world title belt on the line against former world champ Shane Mosley next Saturday in Los Angeles."
"Mosley was a substitute for Manny Pacquiao, who was all but signed to meet Mayweather until a dispute over drug testing derailed the megafight."