According to corkslang.com, caffler is a noun meaning a youngrogue, an impish, saucy young fellow, an impertinent boy. It is used around Cork city in Ireland.
It probably derived from French 'caviller'.
That fellow is a caffler.
' . . . . I rocked that little caffler in his cradle.' (Murphy)
'Young cafflers would come after me along the Mardyke calling me names.' (O'Mahony)
when you pull all-nighters because college is killing you and you need to pump yourself full of caffeine the next day since drinking vodka in class is frowned upon
"Why are you drinking so much coffee??"
"I'm caffeeding myself!!"
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.