These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The more recent songs from Your Favorite Martian are falling under this. Topic matter includes violently beating kids for anything slightly annoying, opening a new store dedicated to selling sexy ass cheeks, getting drunk so ugly girls will look hot, and dumping an otherwise-okay girl because of her smell (it's not even her). Even compared to earlier edgy songs, there are more harsh lyrics that seem to exist only to be more vulgar.
Toned down with "Friend Zone" which is probably the most heartfelt once they've done in a while and has relatively little vulgarity.
Genius Bonus: On a video review about a cat that walked on two paws, he referenced George Orwell (and an on-screen annotation pointed out "TO THE AUDIENCE: He wrote Animal Farm".) Speaking of, when Ray reviewed a video of a dog watching Family Guy in the BAD KIDS episode, he said "Whatever goes upon two legs is an enemy", which is a plot point in the film.
Hilarious in Hindsight: In the episode "Man-Bitch", he jokingly asks if the fat guy that fell through the ceiling was Kevin Smith. Kevin Smith would later appear in person on episodes of Equals Three.
Ho Yay: The music video for Somebody that I Used to Know has Puff singing Kimbra's part from the original. If you know the context of the song, it could possibly appear that he's singing it to Benatar.
Jumping the Shark: Judging from the reception, the future decrease of views in later videos, the change towards mainstream music and such. It's safe to assume that Dookie Fresh started this for Your Favorite Martian.
Memetic Mutation: Many of the viral videos Ray's reviewed are memes in themselves.