brief clips from the first movie are edited into flashbacks
When Neil Patrick Harris enters the whorehouse, he says, "Lucy, I'm home", while imitating Ricky's accent.
The acronyms "P.O.E" and "O.P.E." spray-painted in the washroom and shown in reverse in the mirror.
quoted line: "Bring out your dead"
Kumar asks Harold if he has a Baby Ruth to mollify the creature in the basement, because that is how Chunk made friends with Sloth in The Goonies.
Ron Fox calls Harold "Hello Kitty" because he is Asian
NPH remembers his "lost love," a woman who he says worked as Whoopi Goldberg's stand-in, later suggesting that he got her pregnant.
Kumar tells a girl that this is his favorite show
Ron Fox tells NPH that he became a federal agent because he was inspired by Starship Troopers.
Kumar says he loves this movie
The prisoner talking about sodomizing using a spoon.
Kumar mentions that their trip to Amsterdam is going to be exactly like 'Eurotrip' except that it won't suck.
seen in newspaper ad
A person talks about the upcoming sequel to Harold & Kumar
Subject of a $4,000 question
Peter mentions the Harold & Kumar sequel
Subject of an $800 clue in the category "The Comeback Kids"
Mentioned in dialogue
Kal Penn says that he never asked President Obama if he knew he had played a stoner who escaped from Guantanamo
Mentioned by Daniel Strauch.
Scene of the movie is seen in a laptop.
Clips shown for the review.
The film is discussed.