思いっきり
おもいっきり · omoikkiri · JLPT N2 · adverb
to the best of one's ability
🎯 思い (feeling, resolve) + 切り (cut through, all the way) = put your whole heart into it
思い means feeling or resolve, and 切り means cutting through or going all the way. Together they describe committing your full heart and strength with no holding back.