"Short-Duration Personal Savio(u)r"
Why limit yourself to just one saviour? Huh? Listen, from time to time, your saviour should change as much as your interests-at-the-time do? Sometimes not even all-purpose saviours really cut it; sometimes you just want someone for a particular context and time and NOW YOU CAN! ShorDurPerSavs let you make a particular person (or thing, hey, why be picky?) your saviour for a while, and then when you tire of them, you can choose another one! It's all about CHOICE.