The act of disingenuously hiding your opinions, wether through irony or manufactured ambiguity, in order to make it
virtually impossible to tell what one actually believes. "Pepe" here refers to Pepe the Frog, a meme appropriated by 4Chan which was commonly used to hide
reactionary far-right positions.
Person A: "shaun_vids just made another vague tweet on how vote shaming is bad and then
immediately proceeded to list out every time Biden did
something horrible"
Person B: "he should really stop pepeposting about bernie or bust on twitter,
jesus christ"