Terminally Horny Share definition Flag To be constantly horny. To always be thirst/hungry for sex. To always want to 'd'. To be sex-crazed. Are you terminally horny? I think so.Takes one to know one. Terminally Horny by PineappleJuice March 5, 2015 0 0 Get merch Get the Terminally Horny mug. Buy Now — $32.95 See more merch