fishhead /ˈfɪʃhɛd/ noun3 •The head of a fish. •(slang) A member of a navy; a sailor; a fisherman.Being a Plymouth girl, I had heard plenty of racy stories about navy chaps, or fishheads as we called you. The navy regularly swarmed the streets of Plymouth on a Saturday night. — 2009 •(slang, offensive) A person from Southeast Asia.> >I see you are trying to post in chink. Ha!! Ha!! > > No, that was an English translation of your post. Your^([sic]) a fishhead Ha!! Ha!! — 2004 formsfishheads