2. a person who coughs up semen in such a magnitude, that it permanently ruins a special momment, atricle of clothing, film or television show.
Jack:"i wanna ask you, will you...."
(Stacy coughs up another mans semen)
Jack:"fucking cum dragon, get your stanky ass away from me"
2) a dragon that, instead of breathing fire, breathes cum.
3) a PNRZ that breathes fire.
"I will slay the cumdragon whilst wearing my semen-proof armour."
"What the fuck dude, my VGNRZ will be sore because of your fucking cumdragon!"