N; When one fills a waterballoon with highly liquid fecies after having ingested large quantites of mexican food. One then throws this waterballoon onto one's intended target, thus giving unto that person place or thing a "Greasy Jane." A Greasy Jane tends to contain highly acidic deuce, that the target will not only be shocked that they are covered in said deuce, but they will also experience a burning sensation.
I gave that bitch a Greasy Jane out of my fuckin' hotel room window.
by John June 30, 2004