Chibnall is that annoying friend that always starts bitch fights and doesn't bluff. Chibnall perfers to go by chibby and is that one person in the class that everyone is scared of. She will beat the shit out of you if you go to far with her.
Adding a plot point or story arc that completely ignores and/or invalidates previously well-established canon of a franchise, usually with gratuitous plot holes.
"Wait, doesn't this contradict everything in canon?"
"At this point the franchise started to suffer from Chibnallism."
The state of anti-health where one has large testicular growth around oral orifice areas. This can have devastating results, but also may allow one to go on Maury Povich and get consolations gifts.
I have good news and bad news for you. The good news is that you're perfectly healthy. The bad news is that you have chinballitis.