When you have eaten a lot of junk food and you sit down on the toilet to take a crap. Thirty minutes later you notice that the shit seems to have gotten stuck and is plastered to your hole, so you have to use an entire roll of toilet paper to get it out. In some cases just get off the toilet and take a shower.
I was late for class because I had a giant bag of Cheetos last night and it gave me the worst chain of junk food shits.
I had the junk food shits last night and I used an entire roll of toilet paper until I noticed that there was still shit all over my ass, so I decided to just take a shower instead.