it does look like a lousy opening,so maybe thats why.
The Toilet Variation?

Actually the move-order for the Toilet is 1.e4 c5 2.f4 d5 3.Nc3. Its name comes from the location where it was thought up by a Grand Prix attack player. Unfortunately, White can't hope for more than equality in this line.
Well, if you imagine it, it does look a bit like a toilet. It doesn't matter form which side's perspective you are looking. The bototm two pawns make up the toilet seat cover, and top two pawns make up the lid to the back of the toilet, the bottom knight suggests the pipe near the bottom of the toilet, and the knight at the top... I don't know, maybe waste flying out of the toilet while it is being flushed.
—Alas, my analysis of the toilet variation...

Something has to be done about that name. What if this thing catches on?
Well it has caught on my friend. It's stuck in the U bend and won't flush away. I'm not taking the pee when I say it's a bog standard name and should have stayed in the closet.
It's usually regarded as a crap opening and worth Jack Sh1t !

Well, if you imagine it, it does look a bit like a toilet. It doesn't matter form which side's perspective you are looking. The bototm two pawns make up the toilet seat cover, and top two pawns make up the lid to the back of the toilet, the bottom knight suggests the pipe near the bottom of the toilet, and the knight at the top... I don't know, maybe waste flying out of the toilet while it is being flushed.
—Alas, my analysis of the toilet variation...
I see it now

It is a respectable variation, there is nothing wrong playing it as white.
Sure if u trust BillWall with this fantastic game (what a poor play for white)...

Let's hope a GM doesn't have a eureka moment about a new opening variation when making love to his wife or girlfriend...

looks pretty romantic! if black doesnt push d5, white may just play it like a Labourdonnais variation of the french defense.

actually, you can just try to play it like a lizard attack KIA
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. May just be about playable, but black has small advantage if he plays it that way. Looks harmless to play at the class player level though.

Looks ok to me. White gets a nice, open file. N b1 is wrong. I know this sort of stuff, wasted moves, is in fashion. I get it playing against the king's indian. Black plays Nc6 before e5, white pushes d5 and black hops back to b8, intending to come back out and harass e4. 1-0.
the problem is not the knight being kicked back to b1. (for example, 1.nc3 d5 2.e4 d4 3.nb1 is ok, although nce2 is clearly better), the problem is that white has played f4 too early, so an early e5 has queen check threats, and white cant afford to play g3 in time.

is it really called that
No, the McDonnell Attack is simply 2.f4 and is merely the "Old" way of playing the Grand Prix Attack.
Now players play 2.Nc3 first and only then 3.f4 to avoid the Tal Gambit (1.e4 c5 2.f4?! d5!).
The Toilet Variation still exists. It is declining the Tal Gambit with 3.Nc3, which Tartakower thought up while sitting on the commode, hence how it got its name!

actually, you can just try to play it like a lizard attack KIA
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. May just be about playable, but black has small advantage if he plays it that way. Looks harmless to play at the class player level though.
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..
Is this really the name of the opening? If so, how did it get the name?