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.
The overwhelming response to Sydney's wedding gift to Peter and Zooey.
Crowning Moment of Funny: Too many to count. Sydney roaring at the guy who stepped in the dog's poop, Peter's attempts to scream or to sound cool, Doug calling Peter a whore...the list goes on.
Virtually any time Peter tries to be cool.
"I will see you then, or I will see you at another time!"
"Laters on the menjay." This troper still can't watch this bit without pausing the movie to piss himself laughing for a few minutes.
The exchange between Peter's father and brother after Peter explains that he never had good friends because his family moved around a lot.
Father: Well, Robbie always managed to have friends. Of course, he probably wanted to suck their dicks.