Hello A concerned girl,
What you're describing doesn't sound good. Nevertheless, it could be a simple case of diarrhea. If you get something bad in your gut or something you can't digetst very well, your gut tries to get rid of it as fast as possible. That's perfectly normal. Sounds like you have some veggie material that you can't digest so basically it came out whole. You can see this with corn sometimes. We can't digest the outer part of the corn so it goes through your system undigested. The color of your slim objects may be the natural color of what you ate. Since I don't know what you ate, I can't tell you anymore than that. See if it doesn't go away in a couple of days. If not then it is best you see a doctor.
Yes, I agree that this doesn't sound good.
All of us had watery diarrhea from time to time, but it is not a simple diarrhea. Something is not right, there is a huge chance that for some reasons you don't digest your food properly. What is the main cause of it, it is hard to tell.
Also, it can be because of gallbladder issues, but you can notice it very easily because gallbladder will cause you nausea/vomiting, and pain in the abdomen.
Maybe you have eaten something bad as well? Try to remember all those things and go to your doctor, explain him everything.