Mistakenly only thought to refer to Geordielingo, but has been used by MackemsSunderland for just as long but in a slightly different context.
Imagine the most extreme possible sarcastic meaning of the phrase 'As if' and 'Of course' but with even more negation of authority, then you might touch the full extent of it's meaning.
1)Diplomat-"The war in Iraq was not motivated by oil."
North east England inhabitant-"Why Aye!"
2)"It is possible to find an uncorrupt politician"
Geordie way of enthusiastically saying yes! Everyone is "man" even if you identify as a penguin! the why eye is like a "well duh obviously" way of saying yes!
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.
You didn't get any napkins with your takeout pork fried rice? Womp womp.