Tweeting one thing when you mean another. A double entendre in 140 characters or less, usually an inside joke between friends on Twitter.
Also known as a Subaru
"I'm taking a dump, from the 8th Floor" a sub-tweet directed at @AlyKhanSatchu, who greets his followers from his 8th Floor office every weekday morning
Indirectly tweeting something about someone without mentioning their name. Even though their name is not mentioned, it is clear who the person tweeting is referring to.
A tweet (message posted on the website Twitter) that mentions a Twitter member without using their actual username. Usually employed for negative or insulting tweets; the person you're mentioning won't see the subtweet in their Twitter timeline as it doesn't contain the @ symbol that every Twitter username has.
Someone wants to criticize a person with the username @JohnDoe on Twitter but without that person seeing the tweet in their Twitter timeline. Instead of tweeting "I think @JohnDoe is an idiot" they would subtweet "I think JohnDoe is an idiot" or "I think John Doe is an idiot". In each case the @ symbol is missing so the tweet would not appear in @JohnDoe 's Twitter timeline.
a mental condition characterized by delusions of persecution, unwarranted jealousy, or exaggerated self-importance, typically elaborated into an organized system given by reading tweets. A person would think, when they see someone subtweet, it is about them.
Tweet: She just gave me the nastiest lasagna ever.
Jim: I saw your tweet. You could've just told me you didn't like my cooking.
John: What are you even talking about? You never even cooked me lasagna. That tweet wasn't about you.
Jim: I'm sorry. I guess I have a case of subtweet paranoia.
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.