Wasabi DictionarySlang Fly-jin (n.) – [Wasabi Dictionary] Mar 10, 2016 fly-jin (n.) フライジン (フライ人) A foreigner that flew back home and abandoned Japan during the 3.11 earthquake, tsunami, and nuclear disaster for their own selfish gains. e.g. Sara has the right to claim to be way more Japanese than fly-jin Phil who secretly returned to Japan in 2014.