A meme originating from the Fortnite streamer Ninja.
For a while people were saying in the stream chat (On Twitch) that Ninja died of Ligma. A disease in which someone starts to have blue hair, etc (Not real)
Ignorant people would ask "What's Ligma ?" and then get trolled.
What a totally unaware person would say in response to a statement with the word "ligma". The response to "what is ligma" would typically be "ligma balls", which sounds like "lick my balls". The victim would have no clue that what would follow would be the entirety of the people around him laugh their asses off and make fun of him for weeks.
Jake: hey dude one of my friends caught ligma yesterday
Tim: what is ligma Jake: *snickers* ligma fucken balls bitch
Tim: *faints while everyone around him loses their shit*
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?"