Proof or Ban

Commonly used in r/WallStreetBets, a subreddit most commonly known for gambling in the stock market, “Proof or Ban” is used in response to someone who posts about a stock trade or stock position they have entered into but has provided zero proof of them being in that trade. If the user does not provide proof, they get banned from the subreddit forever.

It’s similar to the expression of “Put up or Shut Up”

Can also be used in other contexts outside of the subreddit or stocks in general. However it will work best in group chats with friends.

Friend 1: “Bro. You remember Sally? She was that super hot chick we met at the bar a couple weeks ago.

Friend 2: “Yeah, what about her?”

Friend 1: “You’ll never believe it bro, but she just sent me an Instagram dm saying that she would totally let me pipe and that I was the sexiest guy she had ever seen.”

Friend 2: “Bro you’re totally right. I don’t believe it at all. Proof or ban.”