When someone posts/shows a video of a White chillin in an area with many blacks present and one w/ White hatred randomly attacks/kills him. Often saying/posting “Remember, around blacks never relax” or “he relaxed”.
Sometimes written as bl*nkshipper, a blankshipper is a word used to describe people who ship the characters Emmet and Ingo from Pokemon, who are canonically brothers.
The term seems to have originated from Tumblr
"bl*nkshippers, DNI!"
"Did you see that guy drawing fan-art of Emmet and Ingo? Yeah, he's probably a blankshipper"