In a shot of Claire at her window, you can see her nipples through her tank top.

None. Just two kissing scenes involving older teens.

There was a scene when one of the kids decide which snow ammunition to use when defending their snow fort from the Snow Plow Man that implied that one of the samples was a result of one of the kids peeing in the snow.

There are a few brief shots where you can see a teenager's nipples through her tank top.

The snowplow has an image of a vintage pin-up girl in low cut booty shorts and a bra painted onto the metal part of the plow.

A girl wakes up to find numerous stalker nerd boys outside her bedroom window.

A young woman is seen in a one-piece bathing suit. The shape of her butt is visible through it. In the same scene, a boy is seen shirtless and a man is seen in a speedo.

A man wears no pants and is forced to wear a grass skirt to keep his job.

A boy lies in bed wearing a girl's ankle bracelet. The boy's father says that the boy is just "experimenting".

Somebody writes "Al Martino bites the big one" over a toilet.

A man says "kiss my ass" in Hawaiian.

A boy says that baboons "have bright red butts".

A boy lies in the road covered in ketchup (to look like blood), with the intent to frighten a man and force him to stop plowing.

The snowplow man, despite not really wanting to hurt anyone, has a very malevolent appearence and drives a plow with metal chains on the tires (rumored to be from the braces of children he ran over). He has a weird pet raven and is rumored to "grind kids into road salt". He drags an obese boy into his plow and traps him there.

A man is pushed down a hill on a toboggan and falls off, but isn't seriously injured.

The man who runs the skating rink is seen with a broken collarbone covered up with a cast.

Some chasing scenes including the snowplow man chasing children and jock kids chasing a boy on a Skidoo, telling him that "the house of pain now delivers!" and "say hi to Greg! He'll be hurting you today!"

A boy falls in a swimming pool and narrates the scene with "my goal was to stay at the bottom of the deep end until I died".

People repeatedly pelt snowballs at a man.

One usage of "suck."

One usage of "crappy".

One usage of "fink".

A man says "kiss my ass" in Hawaiian.

Somebody writes "Al Martino bites the big one" over a public toilet.

Some fart noises play whenever a fat boy is featured on-screen.

Some jokes about peeing including a yellow snowball and the euphemism "I gotta whiz".

A boy calls another boy "blowhole" ("blowhole" is used in place of "asshole").

None.

Some mild peril when "snow plow man" chases kids with his snow plow. He never intends to really hurt them. Might scare really young kids.