Compelling

[Little_Girl]

An extremely attractive, confident, opinionated and intellectual woman who is very cool, has sense of humor and knows how to chill. Compelling was first used by Jon [Steward] when he satirized how [John Roberts], a Senior National Correspondent for CNN described the testimony of Valerie [Plame] Wilson as the most compelling testimony in the Congress since Fiona Hall and juxtaposed the image of Valerie Plame with that of Fiona Hall, alluding how both are two very attractive [blondies].
Jon Steward [mused] what the correspondent meant by compelling and then cut into a clip of CNN ticker showing compelling = f*@[kable]. f*@kable is slang for an extremely attractive women.
The term was then popularized by a self-proclaimed guru of all things Somalian who goes by LL Cool Jamal, a Philosopher-King Beatnik of the Jaded Age and several other self-aggrandizing titles. Hes arguably the coolest Somalian refugee in the entire Upper Midwest of the United States. Together with bunch of equally cool and smart ass friends, the term went national and shows the potential of insinuating itself into the pop culture.

[Raeanne Dimick]

Evoking interest, attention, or admiration in a powerfully irresistible way.

[Jason Yan]

If a reason, argument, etc. is compelling, it makes you believe it or accept it because it is so strong: