When you automatically nod or say yes to agree to whatever the other person is saying, not necessarily because you agree with this person, but because you're not paying attention. Combo of "agree" and "reflex."
"When Megan started to tell me about the benefits of the vegan lifestyle, my agreeflex kicked in and I went to my happy place. She never even realized I didn't hear a word of it."
Term used to show strong concurrence. Said in response to a statement one enthusiastically agrees with.
(Though "agreed-dot-com" is the original, "dot-com" can also be applied to many other words to give them a heightened sense of intensity or urgency, as in likely-dot-com)
Girl: I really think the band Common Shiner rocks.
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.