Top Definition
A quantity. The amount of ejaculate emitted after two or more consecutive tumescent discharges. Specifically referring to a diminshed quantity of ejaculate where there is either no or almost none, immeasurable to the naked eye, of scrotal discharge. It is most often achieved through masturbation however in very rare instances it may be a condition of coital interconnection.
After jerking off like 50 times, Tom could only cum a dusty Tosh.
by meatpockets June 24, 2012

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