To be overly offended/emotional over a
post/status/picture online, or over
something trivial in real life. To be overly sensitive to
shit that has nothing to do with you.
You don't like a post on
Facebook, it really offends you, so instead of being an
adult and unliking a page or moving on with your day, you become all homotional and bitch, whine and complain to everyone who will listen on
said page.