system
A chat on subreddit /r/PoliticalCompassMemes
human
I'm guessing most of pcm is too young for this reference. That's right, you're old if you do.
gpt
Two girls one cup

Meat spin

Lemon party

Goatse

Mr. Hands

Tub girl

Boku no pico

Blue waffles

One man one jar

Three guys one hammer

That chechenian beheading video

Pain olympics


#Tell me if I forgot any of the classics.