It was July 1999 when Jennifer Coolidge invented the MILF. Well, she did for most of us, anyway, embodying the archetype as Stifler's mom in the hugely successful "American Pie" series and popularizing the word in the process. Coolidge is an object of desire for the movie's teens, including Jason Biggs' Jim, who remarks in one of the more memorable scenes of a photo of his friend's mom, "I can't believe a fine woman like this produced a guy like Stifler."

John Cho, credited simply as "MILF Guy #2," spouts out the term in response as he drunkenly sways behind Jim at the party. "Dude, chick's a MILF," he announces, then spells out the meaning for the audience: "M-I-L-F, Mom I'd Like to Fuck!"

If you're of a certain age—Generation X on down—you're probably familiar with the MILF trope. Defined by Oxford as "a sexually attractive older woman, typically one who has children," the term has actually been around