Some people (bphaines
, I'm looking at you) say that the best Glee quote is: "...girl who thinks the square root of 4 equals rainbows."
For a long time, I agreed. It's sharp, snarky, witty, and hilarious. But it has context. Kurt is privately degrading Quinn to make himself feel superior in order to find a space for himself within the fantasy he has built between him and Finn. This gives it actual worth within the show, which detracts from its random hilarity.
However: "Did you know that dolphins are really just gay sharks?" has no context. It has no fucking context. It is random, stupid, out of the blue, and completely bombastically hilarious
I'm sorry. SquareRoot4Rainbows must forever take second place to DolphinsAreGaySharks, from this day forward. Those little bottle-nosed perverts...