Going Postal

The act of stalking about town looking for chilfs

That Kinew, going postal again, worse than Savile

Going Postal on Memes

Recklessly posting memes that violates rules in a discord server, such as in posting NSFW, or Politically Incorrect memes.

Person 1: Did you see that moron that just kept posting memes that violated the rules on our server despite us asking for him to stop ?
Person 2: Yeah, he was Going Postal on Memes.