What is the stupidest opening ever?

Actually, he calls it the diamond defense when he does it with black so the correct term would be the diamond attack when used with white.

I didn't bother to read all the posts but I'm throwing the bongcloud into the conversation. 

bongcloud is funny lol

Indeed.

2.Ke2 is an affront to chess and those who play our great game, be they the grandest of grandmasters or the joe-est of average Joe wood pusher and to argue, to suggest or even to intimate that it is a playable system in anything above the laggard realm of bullet is simply idiocy in the extreme.

Want something dumb? Just keep moving your knight in and out. Keep the original position. The entire freaking game. Works hilariously in crazy house

https://www.chess.com/game/live/16157655023 sure at the end I switched... but still it was funny

It isn't worth it. Its just funny because people never do it, so your enemy has to come up with an entirely new strategy

You're the one who clicked on a forum called 'the stupidest chess openings ever.' you're gonna laugh a lot

There’s a Wikipedia article on the Anti-e4 RAR Attack, which I created! 
However, that is a brilliant opening and a sure sign of my genius! 
As for bad openings, I suppose the Bongcloud is the worst. 

It might not only be objectively best, but it’s so annoying for everyone to be trolling and thinking they’re so funny, when it’s just not funny! Intentionally bad chess is not funny, it’s only funny if you’re actually bad (like Not Master Joseph Truelson)

The Bishop's Opening

The fried fox defense

Bongclound And Pog clound

‎ 

tortoise gambit go brr

Ruy Lopez is the stupidest ever, moving the white bishop again and again in the opening only a dumbster would do that

if we're talking gambits, irish gambit is just the halloween gambit but worse, and the halloween is already bad if you're not a tactical mastermind