YOU SAID:
Slap my lap with a penny cap
INTO JAPANESE
ペニーキャップで私の膝を平手打ち
BACK INTO ENGLISH
Slap my knees with a penny cap
INTO JAPANESE
ペニーキャップで膝を平手打ち
BACK INTO ENGLISH
Slap your knees with a penny cap
INTO JAPANESE
ペニーキャップで膝を平手打ち
BACK INTO ENGLISH
Slap your knees with a penny cap
That didn't even make that much sense in English.