The t-shirt Abed gives to Britta says 'it's all down hill from here'.
WILHELM SCREAM: Heard as Abed, Lukka, and Troy play their video game.
At the baby shower Annie waves two flags: the red one is for The People's Republic of China, the green-yellow-red-purple one is for Zimbabwe.
Abed mentions that he wants Britta to tell him if any of the guys she's dates is left-handed, as he's making some sort of chart. Jeff Winger (aka. Joel McHale) is left-handed.
Britta mispronounces Kickpuncher as Kickmuncher.