innie in English dictionary innie Meanings and definitions of "innie" (slang) A navel that is formed of a hollow in the abdomen (as opposed to one that protrudes from the abdomen). noun (slang) A navel that is formed of a hollow in the abdomen (as opposed to one that protrudes from the abdomen). noun (slang) A vagina with inner labia minora more Grammar and declension of innie innie ( plural innies) innie (plural innies) more Images with "innie" Sample sentences with "innie" Declension Stem Try again Available translations Greek Authors