Being fully motivated or eager to do something; having a high level of willingness and readiness to act.
新しいプロジェクトの説明を聞いて、彼はやる気満々だった。
After hearing the explanation of the new project, he was full of enthusiasm.
試合前にチーム全員がやる気満々で練習に臨んだ。
Before the match, the whole team approached practice full of determination.
面接でやる気満々に話すのは良い印象を与えるが、実行も大事だ。
Talking enthusiastically in an interview gives a good impression, but carrying it out is also important.