....Act fast and you too can cash in on the "MILF" promotion.

The fire sale by Fort Lauderdale, Fla.-based Spirit Airlines promises "Many Islands, Low Fares" deals as low as $9 for future travel dates between Fort Lauderdale and the Bahamas.

While the prices may be right, it's that promotional acronym that's raised eyebrows among customers and now has the company feeling "uncomfortable."

Before MILF became shorthand for a Spirit Airlines promotion, the acronym hit the mainstream as an obscene descriptor of a mother considered to be sexy.

The term was popularized in the raunchy 1999 feature film "American Pie," in which Jennifer Coolidge plays Stifler's Mom, an attractive, voluptuous woman who ultimately seduces a high school adversary of her son Steve, played by Seann William Scott....

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