Why did you put a hole into the Translation Konnyaku!?
The translation konnyaku (Translation Gummy in English) is a gadget in Doraemon that's basically a piece of konnyaku (a sort of jelly-like food item) that makes you capable of understanding and speaking all languages upon eating it. The name is a pun: translation is said as "hon'yaku", therefore: "hon'yaku konnyaku".
The 30th of September is
Translation Day!
This celebration was created to commemorate the achievement of Saint Jerome, who translated the Bible to Latin!
Why, you...
As to why she is angry: if legends are to be believed, people sometimes make a hole into a piece of konnyaku and use it as a fleshlight.