A Banter Biscuit is the official tea dipping material that is often rewarded from a banter overlord to his squad when one or more members incite "witty banter" into a chat.
This witty banter can be applied through the use of both text, speech and through images often combined to create "memes".
Person 1: "That was some great, witty banter there."
Person 2: "Cheersbutt."
Person 1: "I award thee a banter biscuit."
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.