Noun
(film) a plot element that catches the viewers' attention or drives the plot
Source: WordNetthe McGuffin was a key element of Alfred Hitchcock's films Source: Internet
The opening scene of gun-toting, beer-guzzling, tattooed dissidents spewing expletives at the world is the perfect McGuffin for a provocative drama soaked in racial brinksmanship. Source: Internet
Other cove says a McGuffin is an apparatus for trapping lions in the Adirondacks. Source: Internet
MCGUFFIN: Trudeau says the questions that need to be answered are all to be found in Iran. Source: Internet