Deriving from "hawk a loogie" in which a slippery secretion from the nasal passage is evacuated through the mouth, this colloquialism has been used to mean:

1) the act of evacuating seminal fluid from the testes, prostrate, etc. through the vas deferens and the urethra—the ejaculatory result of masturbation or other means of penile stimulation

2) the act of evacuating seminal fluid (obtained through performing oral sex) from the nasal passage through the mouth—often after the result of attempting to pass the fluid through the throat