Simply being ready/in the mood to just senselessly hate on someone/something .
Up-To-Hate is a unique combination of words similar to Up-To-Date, but instead of the meaning being well informed about an event, topic or person it means that you are ready to hate on someone or something in order to keep them in place, cope with something or just because you feel like being an asshole towards others.
Person 1: Are you ready to hate on some of Tim’s posts?
Person 2: Why?
Person 1: he’s been acting like he’s better than us after he got that A+ on the last Chemistrytest, so I’m feeling pretty Up-To-Hate for him.
Person 2: True, well I guess a little mocking will bring our Tim back.
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.