When you get oral sex from a woman and you finish inside of her mouth. now she has to swallow and upon swallowing, you must punch her in the chest so that she will cough. the desired effect is to make her cough up the semen and some of it will come out of her nose, therefore the "snorting dragon" reference.
"I gave a prostitute a snorting dragon because she charged too much."
by viet peter April 24, 2006