Idiot meatheads that have moved on from hanging out in the weight room listening to metallica to attending hardcore concerts with the intention of "fucking kids up." A vast majority of jockcore kids are insecure straightedge kids who take their teen angst out in the pit.
Jockcore Kid: Dude, tommorow, I'm going to the Throwdown concert and punching everyone smaller than me in the face.
Me: You're a fucking moron. /wrist please.
A music genre. It's the concept of making a song that seems like a joke and/or a waste of space and memory. Typically sent as a file through file-sharing sites to trick a user to believing they downloaded the right song.
"This isn't Lady Gaga's latest album; this is jokecore."
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?"