The Toilet Variation?

I think that's correct. I played him once and I think I played a Sicilian.

white is ok if he has time to play g3 bg2 nf3 etc. The only problem is an early e5 where after nf3 exf4 is annoying.    Solution:

Dont play Nf3 at that case. play g3 first. And then if eats gxf4 and Nf3 bg2 etc..

It's because 1. e4 ... c5 2. f4 is known to be a poor continuation for white anyhow, due to 2. ... d5, equalising. This is just another means to equalise by black. It's crap for white .... hence the toilet variation. And that's how it got the name.

There's a lot of mistakes with chess.com naming.

McDonnell is just the weak 1. e5 c5 2. f4

I only know of this as the McDonnell attack, unless d5 here gives it a new name. d5 also seems like a pretty unambitious move in the position, if I recall correctly I play Nc6 there to avoid some drawing line if you play d6.

I wouldn't say it's unambitious. 2. ...d5 might be played against a stronger player to defuse their opening but equally it could be played by a stronger, positional player. After 3. ed ... Qxd5 4. Nc3 Qd8, black is fine and has a solid position where white's f pawn is more a hindrance to white than a benefit. But the so-called "toilet variation" equalises too. Or black can go into their favourite anti-Grand-Prix line. I personally play my own line, which is e6, a6 and then d5.

reall?

litterally the best joke ever lol

Lol

someone played this in a classical game and went to use the toilet, only to come back an hour after the game ends and wrote 'toilet variation' on his game sheet

I can't find the source for this. Maybe it was a 1980s "Chess" Magazine from back when B. H. Wood owned and edited it, maybe it was in "The Complete Chess Addict". But the way I recall hearing the source of the name runs... Back then, the Sicilian Althouse variation was a thing. Meanwhile, Grand Prix Attack players (in the '80s, both 2. f4 and 2. Nc3 followed by 3. f4 were both known as the Grand Prix) were none too happy facing Tal's 1. e4, c5; 2. f4, d5; 3. ed:, Nf6. So someone (likely Hebden but I can't swear to that) came up with 3. Nc3 and humorously referred to it as the Outhouse Variation. And from "Outhouse" to "Toilet" is but a small step.

This opening is very disgusting. Please wash hands after using.