Happy Tree Friends (1999)

the series is more of a Sadist Show where each and every character is a Chew Toy , doomed to suffer a nightmarish, gruesome, and absolutely disgusting demise.

In every episode (apart from one) the characters suffer painful deaths that consist of a lot of gore.

There is no dialogue, meaning that no swearing is possible.

This series disguises itself as an everyday kid's cartoon, but is a series of animals suffering painful, nightmarish deaths. Flippy/Fliqpy suffers PTSD, or Post Traumatic Stress Disorder, and when triggered, he goes on a murderous rampage and does not stop until basically there is not anyone to kill.