What are some Japanese memes? I know plenty of memes from places like Finland, Poland, Brazil, etc, but none from Japan.
In exchange I'll show you a Russian meme.
ПеКа-фейс, more commonly known in Western parts of the internet as either "Yoba" or "Comfy guy". It's a circular yellow face. He's used kind of like a general reaction image.
Here are some examples.
http://i0.kym-cdn.com/photos/images/original/001/034/790/e40.jpg
http://i1.kym-cdn.com/photos/images/original/001/034/789/c0d.jpg
http://i0.kym-cdn.com/photos/images/original/000/210/871/4859.gif
http://cs6.pikabu.ru/post_img/2015/03/08/10/1425831308_1896420509.jpg

>>400
The text is meant to look like an Uzi.