Pitchin' in the mirror is when you are so depressed and lonely that the best part of your life is the wonderously pleasurable feeling that you sometimes get when pitchin’ a loaf, so much so that you put a mirror in front of the toilet so that you can witness the look of pleasure on your face and savor these glorious moments of fecal delivery while pretending that your reflection is another person, a compassionate friend.
Bro, ever since I found out how hard it is to become a rock star and my girlfriend got abducted by The Grays, I've been pitchin' in the mirror.
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.