Minor crude jokes are thrown throughout the series.

In an earlier episode, it is mentioned that one of the characters is obsessed with hentai. However, none of it is shown though.

Kim and Katya wear skintight outfits.

Tom once dated a coconut during prom.

Zombie apocalypses happen a lot like in the episodes "Fun Dead" and "Zombeh Attack" 1, 2 and 3. Lots of people and zombies are killed.

Violence is one of the biggest things in the series. Especially in episodes centered on zombie apocalypses and in the episode "The End".

Some episodes provide a load of gore. As such, an episode shows Edd's head off and his brain falling out.

In "The Dudette Next Door", Edd says "You son of a bitch!"

In the episode "Hello Hellhole", the word "hell" is used a few times.

Sometimes, the characters are about to swear but they get interrupted.

in the Random Bits episode, the f-word is used

In in the captions of "PowerEdd", it says "(more sweet ass fighting)".

The Nicktoons dub they has a no moderate or severe profanities they edited just like "ass" "crap" and "hell"

Damn, hell, crap. One episode, Edd says "holy shit" when Zombie Tord and a bunch of zombies are around. And in a Random Bits episode, we see Tord say the word fucking in a song.

Tord and Paul are often seen smoking cigarettes.

Alcohol is sometimes shown, but it's not really portrayed in a positive light.

Tord smokes a cigar, and Paul smokes a cigarette, but they aren't shown in a lot of episodes. However, Tord left after 2012, and then came back (with a different voice actor) for "The End" Part 1 & 2.

Tom is sometimes shown drunk, or with a bottle of alcohol.

Sometimes, there is people drinking in the background of some scenes.

Sometimes, characters come close to being dead or injured.