Running Gags are things that are repeatedly and comically mentioned or applied to.
“Star Trek is a TV show that often appears in "Weird Al" Yankovic songs. the number of molecules...Star Trek
“Nerds are often talked about or mentioned in "Weird Al" Yankovic songs. Appearances Born To Be...Nerds
“Obesity is when someone is morbidly overweight. Being overweight, or fat is the subject of quite...Obesity
“Television is the entertainment system which entertains us all. It is also the subject of some...Television
“Cheese is often referred to in Weird Al songs. Appearances A Complicated Song: "Uh huh... extra...Cheese