I hope it's alright if I suggest a few of my own in this thread...
For defecation, there's currently only "Pantypoop" and "Scat". Whenever I hear/read the word "scat", the first thing that comes to mind is all the hardcore stuff (touching, eating, etc.). I think "Scat" should only be used when the previously mentioned activities take place in a story, and have a new warning labeled "Pooping" or "Defecation" for normal excretions.
The same thing applies to "WS". There should be "WS", and "Peeing" or "Urination".
"Vomit" and "Enema use" should be added also, in case any future stories have them.