amegomaniac Share definition Flag a person who is obsessively committed to a friendship with an egotistical or self-centered person. “My best friend is a complete narcissist so I guess you could say I’m an amegomaniac.” amegomaniac by SalvyZ June 7, 2019 0 0 Get merch Get the amegomaniac mug. Buy Now — $32.95 See more merch