What makes a good, memorable line or phrase? What gives a line that shine that makes us pick it up and carry it back to Memory’s Nest?

We say that such things are catchy, and I think it’s reasonable to literalize the image and see what it reflects. When I think of things that catch, I think of burrs or stickers. You brush against them and they hitch onto your clothing or skin. I don’t like that image of catchy – it is a bit random and has an undercurrent of discomfort. Some jingles or phrases that I dislike do seem to grab onto me and to create the unpleasant sensation of being used – being used as a host for some cruddy idea, trite melody, or shoddy product.