Loop-the-loop used in a sentence

Loop-the-loop in a sentence as a noun

Is there no better word to describe what is happening, including within your field, but it isn't a technically accurate description?I'm envisioning a room full of highly educated folk excitedly talking over each other... "Well it looks like a ring, but it doesn't quite meet up..." "It looks like a disc, but with more 'weight' to it..." "No, it looks like a loop-the-loop on a roller coaster!

The "without notice" part is only if you're doing it wrong - you should be giving your users advance notice of any maintenance activity.> Every now and then when the tunnel reopened, it would feature a loop-the-loop hidden inside the mountain.