The last one refilling detergent is a parody of The Milkmaid by Johannes Vermeer; everyone has seen it on textbooks and it has become a meme template on Japanese Twitter in recent years.
I mean, that's a tough idea. That's literally just a picture of someone pouring detergent, not an actual costume. Would have to say this one is pretty lame...
Some of these are very humorous because of the cultural disconnect (as an American, I have never experienced somebody asking to put their seat back).
"An expert on a very niche subject" made me laugh out loud the hardest, because it's the one that's most "just a guy", and yet it's also exactly how it's described.
Maybe this is a different type of mundane costume, but I like costumes that just look like guys. When the anime initial D was popular, I would wear a white T, blue jeans, part my hair down the middle and say I'm cosplaying as Takumi Fujiwara...
I saw video of a costume contest this year where one participant was wearing an Amazon delivery driver vest, flung a cardboard box across the stage and then took a picture of it (all to wild applause).
It's San Francisco, there's a lot of immigration, cultural influence, etc. whereas say Australia has outsize Vietnamese, Indonesian influence; or India in the UK.
1: https://en.wikipedia.org/wiki/The_Milkmaid_(Vermeer)
Just have to ask, how do you know this???
"An expert on a very niche subject" made me laugh out loud the hardest, because it's the one that's most "just a guy", and yet it's also exactly how it's described.
Source: these dudes email me at a rate of about 5/week asking me to spruik their app to my audience.
Yes, a thousand times yes you can put your seat back you gentle soul.
Overjoyed that I understand this, allow me to explain it to those who don't.
Seats on the Shinkansen [0] are bolt-upright by default. You basically have to recline them a little bit to be even vaguely comfortable.
Every person, every time, asks the person in the seat behind them whether it's okay to recline their seat by 5°.
The seat pitch on the Shinkansen is approximately 1 metre. There's a lot of room.
[0]: My line, anyway – the E5 series cars that run the Hayabausa service.
You don’t see this kind of post rise for any other culture.