YOU SAID:
lemme get one 4 hamburger
INTO JAPANESE
4 ハンバーガーを 1 個買ってください
BACK INTO ENGLISH
4 Please buy me a hamburger.
INTO JAPANESE
4 ハンバーガーを買ってきてください。
BACK INTO ENGLISH
4 Please buy me a hamburger.
That didn't even make that much sense in English.