An image of an erect penis is seen in a text message. While the picture is only shown briefly, it's referenced multiple times later on in the film.

A woman invites a man to have sex with her. Later, you very briefly see them having sex in a bathroom (played as a joke).

Two women briefly make out in a club.

A few scenes of couples kissing.

Some women at a party wear tight-fitting clothing; some reveal cleavage.

A woman jokes that her father is too old to have sex.

A man gets a Christmas mug that says "worlds smallest cock"

Some mild sexual humor

A man's buttocks is briefly visible as he is injecting steroids.

A scene taking place in a strip club has some women in the background topless.

Crude humor throughout.

A man gets punched out by two men dressed as Santa.

Many comic pratfalls.

A man gets a broken wine glass stabbed through his hand.

A man has a nosebleed and some blood goes into a drink.

150 uses of "fuck". 73 uses of "shit". 3 uses of "cunt" (it is used in a non-sexual sense). Lots of milder language as well ("hell", "damn", "ass", etc.)

Mushrooms, weed, cocaine and alcohol are all consumed.

The three men travel to a drug dealer twice to buy weed for a party

A woman gives her husband a box of drugs at the start of the film as a Christmas present.

There is some drug use and lots of alcohol consumption

At the beginning of the film a man is taking steroids through a needle.

VERY irresponsible behavior presented throughout the movie, but nearly all of is done in a comedic way.