Realistic

 You think SpongeBob is unrealistic because it's a talking sponge with a talking starfish. Okay

I think SpongeBob is unrealistic because a fast food worker employed by a crab owns his own pineapple and doesn't need to have 15 roommates to make ends meet.

Foods

 a veggie sandwich is really just a salad with a disproportionate amount of soggy croutons.

English Language

 In the middle of the 1600's the term "buttered bun" was English slang for a sexually promiscuous woman. https://www.lexico.com/en/definition/buttered_bun

Because in 17'th century Britain, they didn't have this "gluten free" bullshit.