NIMBitch Share definition Flag Noun - An entitled ideologue who subscribes to NIMBY (Not In My Backyard) principles, who is also, a bitch. The mayor will never support that project, or any project for that matter, he's a NIMBitch! NIMBitch by notrichtran October 13, 2020 0 0 Get merch Get the NIMBitch mug. Buy Now — $32.95 See more merch