The underlying message could seem to be that scoring alcohol for a party will grant even the nerdiest kid "cool" status for a night. But by the end of the film, it's clear that the film's real point is that true best friends love each other unconditionally, not selfishly.
Positive Role Models & Representations
McLovin gets pistol-whipped in the head by a robber; a fight breaks out at a party, where a few of the men suffer bloody wounds; a hobo kicks, punches, and pounds on various people at a bar; Seth accidentally punches Jules in the eye. In a daydream, Seth envisions a security guard slashing his throat. A woman's menstrual blood ends up on Seth's pants, causing a fight.
Sex (and various sex acts), virginity, and pornography are discussed in graphic detail throughout the entire movie. The near-constant conversation about oral sex and genitalia is finally matched by two short scenes of drunk, semi-clothed teenagers about to have sex -- although neither couple finalizes the act. There's also a scene that displays many drawings of penises, supposedly done by an 8-year-old.
The dialogue is filled with nearly ubiquitous curse words, primarily the "F-bomb" and its derivatives. There are probably two short conversations in the entire film that don't feature constant swearing; otherwise, they're the most commonly used words -- including "s--t," "dick," "p---y," "ass," "tits," "bitch," etc.
Old Milwaukee beer, plus other liquor brands that sound familiar but aren't real, probably because real alcohol companies didn't give permission to be used in a movie about underage drinking.
Ease of Play
The plot revolves around buying alcohol for a high school party, so there's obviously a great deal of underage drinking. Teens also smoke cigarettes and are present at a party where adults are smoking marijuana and snorting cocaine. The main drug, of course, is alcohol -- from vodka to beer.