tullu chaki 21
It is evidently Quechua, and not Spanish. Also, to me it sounds chaki tullu ("femur"), but since it is a composite voice and my knowledge of runasimi is very poor, it may be said both ways, and I don't know. It is formed by Quechua/tullu ("bone, skeleton", by affinity "skinny", by similarity "stem of vegetables") and Quechua/chaki ("leg of animal, foot").