Vinegar Stroke

The final few strokes before male orgasm; alters the physiognomy to resemble nothing less than the proverbial, "Grinning Japanese," particularly in the case of self-abuse.

Seminal ... semenal? song Turning Japanese by 1980's band The Vapours was allegedly all about having such a wank. Details about another urban myth shot down here. For a burst of nostalgia n that, uTube the song here.

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