Axualy... Da hip-hop Flocabularly site has several words that rhyme wit orange: lozenge, boring, forage, porridge, door-hinge, score bench
Actually, there's "syringe" as in Eminem's song "Business" in which he raps: "Oranges, peach, pears, plums; Syringes (vroom, vroom), yeah here I come..."