ELI5: Explain Like I'm 5

spaghetti code

Spaghetti code is a way of writing computer programs that makes it hard to understand and follow. It is like a plate of spaghetti – lots of lines and pieces are mixed up in a confusing way. It's difficult to see what all the different pieces of the program do, and it's easy to make mistakes because you don’t know what’s connected to what. Spaghetti code makes it difficult to fix problems or add new features.