negadong Posted in N Best definition negadong verb: to have a severe shrinkage in one’s dong. Hence ‘nega’ as in negative, and ‘dong’ as in male genitalia. Quite opposite to that of megadong. Dude, this pool is so freakin cold. It’s giving me a mad case of negadong. How satisfied are you with the definition? Looking for negadong meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 51 times.