A parallel existence in which events may unfold differently and particles are antimatter and so forth. A subset of the multiverse.
Amply illustrated in this Youtube conversation.
Dude 1: I shudder to think that there may be an alternate universe out there in which McCain-Palin won the elections! Wait, she could be PRESIDENT in this one!
Dude 2: There is such a universe. In that universe Gore and Lieberman won. Gore was killed by an Iraqi-Iranian-Pakistani Terrorist while he was looking out a window in the Twin Towers. President Lieberman made a tearful speech declaring Gore a martyr. He the declared World War on Islam and bombed Egypt.
Despite popular belief, an alternative fact is not a lie, but a fact derived in an alternate reality or parallel universe. These facts are often hard to verify as all data and analysis doesn't leave the alternate reality or universe where it was derived. Furthermore most people are not able to access the alternate reality or universe, as it requires special abilities reserved for those with a wonton disregard for logic, and zero cognitive dissonance.
Trump: Hey Pence, Nickelback is the best selling band of all time! We need to book them for the inauguration.
Pence: Save your alternate facts for the media and twitter.
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.
A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.
For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!