A right-wing populist/alt-right supporter/white supremacist/far-right extremist who's a hardcore fan of the 45th U.S. president, Donald Trump.
Guy 1: MAKE AMERICA GREAT AGAIN!!!!!!!!! GET MEXICANS AND LIBTARDS OUT OF THE COUNTRY SO A BORDER WALL WILL BE FINISHED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Guy 2: Go touch grass, you hardcore M.A.G.A. fan, and never use Twitter and 4chan's /pol/ board ever again!!!!!!!!!!
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?"