These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Or an extremely repressed homosexual. This one is actually really popular.
Awesome Music: The film has a varied and pretty awesome soundtrack, though highlights include "Too Hot to Stop" by The Bar-Kays during the opening credits, "Roda" during Seth's grade school flashback, Curtis Mayfield's "PS I Love You" at the end of the film and "Funk McLovin" by Bootsy Collins during the credits.
Not to be ignored are "Bustin Out" by Rick James, played as Seth and Evan meet up with Fogell; "Here I Come" by the Roots, played when Seth arrives at the party, and "Pork and Beef" by The Coup (Don't trust the police, no justice, no peace...)
Also, "Ace Of Spades" by Motorhead when Seth and Evan are trying to escape the crazy adult party.
Big Lipped Alligator Moment: Seth and his dick drawings, which is never spoken of or mentioned again and is arguably one of the funniest scenes in the movie.
Also Seth's fantasies about buying alcohol, which include pulling an eighty-dollar bill out of his sleeve and a full-scale shootout in which he gets his throat slashed with a broken bottle and graphically bleeds to death.
The unrated version expands a throwaway moment of Seth trying on tight jeans at a store in the theatrical version to a full, two-minute scene of Seth and Evan discussing the jeans' positives and (mostly) negatives.