spoof

[T]he release of semen from the penis predominantly symbolizes a forceful masculine operation, an orgasmic ‘rush’ – ejaculate refers to a sudden happening, an ejection – while the ‘loss’ of blood during menstruation is viewed as a more or less passive occurrence. Even the metaphors employed to depict these two aspects of corporeality serve to situate them on differently gendered poles. Man ‘spoofs off’ or ‘shoots his load’, while woman ‘gets her visitor’, ‘has got her monthly’.