A review of recent works related to the concept of female ejaculation, defined as a partial, infertile homologue to male ejaculation, indicated that we have insufficient evidence to accept or reject the concept on scientific grounds. The claim that "female ejaculate" is similar to semen from a vasectomized male is without foundation.
Although recent discussion of female ejaculation has tended to focus on whether or not the fluid sometimes expelled from the urethra upon orgasm is invariably urine, the Bartholin's glands are another potential source of orgasmic expulsions which could properly be called "female ejaculate."
"Grafenberg spot" is a neologism referring to an area which some women report is erotically sensitive when massaged via the anterior vaginal wall.
"Urethral sponge" is another term which seems to refer to this anatomical/phenomenological reality. The relationship between stimulation of this area and subsequent orgasmic expulsion has yet to be studied systematically.