A contraction of 'Serious Business', popularly used among the Red vs Blue forums, as well as various other ports of call around the internet.
It's main use is mocking, when someone takes the internet too seriously or takes a joke too seriously, people will often remark on how it is "srs bsns".
WWE Chris Jericho's darker, legend killing, serious form. He has infinite power and many cults among the wrestling forum's liars, hypocrites and parasites. Gets jobbed out to Cena and Mickey Rourke as well.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"