Being an ass to get reactions out of people and then laughing at them for taking things way too seriously over the internet.
Some people call it trolling or baiting, but it is neither. E-baggery elevates itself to a class of intelligence, being the internet equivalent of satire. The idiots just get left behind.
"Dude, did you see the comment I made on Jane's myspace? It made her cry."
"You're such an e-bag, man." *High-five.*
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"I have a BS in E-baggery."
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?"