spaghetti bowl n. a mass of complicated relationships within a group, system, or process; an intersection or interchange of many lines, pipes, roads, or railways. (source: Double-Tongued Dictionary)
Further reading
Understanding the varieties of conversational styles can mean the difference between feeling you’re understood and being insulted. “High-involvement” speakers interrupt or talk along with someone else to signal their enthusiasm...
Nikki in Northampton, Massachusetts, disagrees with her teenage daughter about the word beef, as in to have a beef, meaning “to have a problem with someone or something.” Nikki uses the word a before the word beef, but her daughter omits...
Spaghetti bowl: teerm commonly used by programmers and technical writers in 80’s referring to untidy and unnecessarily complex code