めじゃない
no big deal; no match; not worth worrying about
Expression
「まあ、それでも君きみよりは、はるかに僕ぼくの方ほうが点数てんすう高たかいけどね」「なんですって！私わたしが本気ほんきを出だせば、あなたなんて、目めじゃないわ！」
"Well, even so my score is far above yours isn't it?" "What did you say!? If I was to go all out you'd be as nothing to me!"