hypo = orange ghost. Hypo is just easier to say. If you have a different line of ghost (like a green ghost), then you say green ghost instead of hypo.
If you get a hypo lesser, hypo pinstripe, or hypo yellowbelly, all babies would be hypo _____. If you got a lesser het hypo, pinstripe het hypo, or yellowbelly het hypo, then all the babies would be either hypo _____ or _____ het hypo.