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.
"Rock Lobster" deserves a mention as well, but it didn't get nearly as much airplay.
Ear Worm: Their entire discography is this. No exceptions.
Epic Riff: "Rock Lobster", "Private Idaho", "Hallucinating Pluto", "Pump", and "Lava" are the best examples.
Epileptic Trees: There are a ton circulating around the Throw It In line "You're what?!/Tin roof...rusted" from "Love Shack." The prevailing theory (as pointed out by Pop Up Video) is that it's some obscure slang for "pregnant".