O`girl - Something that goes on forever and ever, like a never-ending

Something that goes on forever and ever, like a never-ending loop. It’s like being stuck in a boring class with no end.

This homework is an O’girl. It never ends. I’ve been doing it for three hours.

This movie is like an O’girl. It’s the same scene over and over again.

This math problem is an O’girl. I’ve solved it 10 times and it keeps coming back.