The song that play in Frank's dream and when he falls into the pool is the intro song to The Graduare with Dustin Hoffman
Cinderblocks tied to penises
A pool party guest wears an Eleroo costume.
several references throughout the movie
The blowjob teacher offers to teach Marissa a sex act called "Crouching Tiger, Hidden Penis"
"Red Dragon", the name of Frank's car, is also the name of the Welsh operative in Made (also starring Vince Vaughn)
At end, Will Ferrell instructs frame hanging just as Richie Tenenbaum does.
Mentioned in Live with Regis and Kelly skit
Movie title on theater marquee
mentioned in dialogue
referenced in movie theatre skit
on shelf in video store
When Rachel goes through the stack of videos at the fair, one of the videos is Old School.
The movie that Teal'c wants to see.
The death conversation between Gary and Mingie was taken from the scene in Old School where Mitch and Frank are unsuccessful getting the tape from the dean.
Gary (Vaughn) warns Lupus (Hauser) that he could be arrested for the lewd chat-up lines he uses on two girls in the nightclub scene. Lupus asks "Arrested? What for, being awesome?" This same come back was used by Vaughn's character in Old School when Luke Wilson's character is worried he may be arrested for sleeping with a minor.
referenced in clue in "The Brethren" category
After Ricky Bobby's big crash, he crawls out of his car and thinks he is on fire, losing his composure completely. In 'Old School', Will Ferrel wears a mascot suit that does indeed catch fire, and losing his composure in the next scene (while screaming "Keep our composure!"). Both sequences end with Will Ferrel wearing only white briefs.
in Roddy's DVD collection
Referenced by name
Cassie mentions that her and Cappie watched it a bunch of times
Reference in a $4,000 question
The same wedding band is featured in The Hangover
When Holly Cantrell meets Dr. Rick Marshall, she shows him a fossil with a lighter impression. Marshall pulls a Zippo lighter out of his pocket with the engraving "Big Cat" on it.
Mentioned among DVD re-releases
Mentioned in house band intro
One of Eli's five desert island movies
A still is shown of Blue
Subject of a $200 clue in the category "Alliterative Actors"
Kendra says her mom's partying with younger men is like the film
a camper suggests it for movie night
Jay mentions that Dan Finnerty was in the film
Mentioned in dialogue, and a fan recreates the streaking scene
Title mentioned while introducing Todd Phillips
Duke: "We're going streaking"
DVD is seen
Jay mentions that Vince Vaughn was in the film
Co-worker (to Brad): "You're my boy, Blue!"
Features clip from the movie
clips featured to illustrate the most embarrassing moments in movies
a clip of Dan Finnerty's appearance in the film is shown to introduce him
Clip of Jesse Heiman
Near end, Mark drives Porsche off bridge into creek and onto Pritchard