breasts that are shallow to the point of almost being invisible - like those of a slim prepubescent or peri-pubescent girl. Breast buds are characterized by their shallowness (closeness to the chest), not by their narrowness. Long, narrow breasts are not breast buds.
Though Donna was in her mid-30s, she had dieted so assiduously that she had the body of a 14 year old ballerina and the barely perceptible breast buds of a prepubescent girl. However, when excited, her nipples became hard like two halves of an unripened plum.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.