It's definitely normal. I had this too but it usually only came out if I sat on the toilet and pushed it out. But there were a few time that it did squeak out on its own. I think because it's so slippery. Not much you can do about it except maybe wear a pad or disposable underwear to bed.

When this happened to me my surgeon suggested I use the opportunity to do Kegels in order to strengthen my anal sphincter(s). Yeah, right! I was so disheartened because that mucus is the most slippery stuff I've ever "seen" and I felt like an utter failure at clinching hard enough to hold it in. Kegels, my "_ss". Fortunately, once I had my takedown I realized how helpful this mucus is to help pass the stool out of us. Without it, we'd feel "stuck". Wish they had told me!!!!! You are experiencing a dress rehearsal and it is all good!

All bowels make mucus. That's just normal. It mixes with stool, and we rarely think about it/see it.

My surgeon used the slacking off of the mucus to help determine my takedown. It was 4 months and 5 days post my colectomy/j pouch/loop ileostomy that I had my bowels connected and rewired for sound.