minaj Share definition Flag short for Menage A Trois, meaning to have a threesome. Derived from Nicki Minaj because it is a misspelling on purpose. Bring a friend tonight so we can minaj.If you wanna minaj, keep a couple pretty broads. minaj by Starsdrippin July 24, 2009 0 0 Get merch Get the minaj mug. Buy Now — $32.95 See more merch