“I Took an Arrow in the Knee” is a catchphrase from the role-playing video game The Elder Scrolls V: Skyrim which inspired the snowclone phrasal template “I used to X, then I took an arrow to the knee.”
Pepper Spray Cop, also known as “Casually Pepper Spray Everything Cop”, is a photoshop meme based on a photograph of a police officer pepper spraying a group of Occupy protesters at the University of California Davis.
Pedobear is a cartoon mascot that gained an iconic status through its usage on the imageboard site 4chan, where images of the character can be used to signal that illegal pornographic content has been posted by another user. Due to the nature of its usage, Pedobear has been also equated to a pedophiliac bear
60’s Spider-Man refers to image macros from stills taken from an old Spider-Man cartoon series, which is infamous due to it’s poor quality animation, writing, and voice acting. The overlaid text typically represents Spider-Man’s absurd internal monologue relating to what action can be seen in the image.
Minecraft is an indie Java video game created by Markus Persson, also known as “Notch.” It is a sandbox building game in which the player gathers resources to create new objects by combining them in various ways.