A slang term used to refer to a girl who's breast area has either reached the point of extreme sagging, or even at a young 20 something age already sag to a tremendous level.
Acronym for "Straight Acting Gay," pronounced like the word, "sag." A punnish alternative to the homophobic slur, fag, on account of its sound.
Popularized by former NSync member, Lance Bass, in a 2006 interview.