A dance in which someone curves and uncurves their hands over their chest, representing Nub, and makes their legs into a circular shape, representing Shrub, at the same time.
Sam did the Nub on a Shrub dance at recess.
In celebration of her successful math quiz, Olivia did the Nub on a Shrub dance.
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.