YOU SAID:

stick a banana in your ear and call yourself a numpty

INTO JAPANESE

あなたの耳にバナナを刺して、自分自身をナンプティと呼びます

BACK INTO ENGLISH

Stab a banana in your ear and call yourself Nampty

INTO JAPANESE

耳にバナナを刺して、Namptyと名乗ってください

BACK INTO ENGLISH

Stab a banana in your ear and call yourself Nampty