Maniggamous Share definition Flag One is maniggamous when one, and only one, of the individuals they associate with is considered their "nigga". "Jared, you're my only nigga" . "Well, Michael, I guess that makes you maniggamous". Maniggamous by Gilbert Simons October 1, 2017 0 0 Get merch Get the Maniggamous mug. Buy Now — $32.95 See more merch