Idotiataing End

To define the first word, it meant “stupid” (I guess you knew that from the first 5 misspelled letters, from the first word.)

So the whole meaning is “Stupid end” (You really can use it for someone who ended something using a very idiotic way)
Some individuals will use it as a fun way to describe a character whose personality is mostly not smart. And, if you are one of them, you are all wrong. You all noticed the word “End” behind the first word.

You all can use the word “End” in a way you used it to define the word “end” and it's tenses.”
Pro-tip: Never ever use the word “Idotiataing” in any tense, it will sound very bad, and I warned you, I mean, you can use it as an adverb only.