YOU SAID:
I slapped my dad with my mums hand
INTO JAPANESE
お父さんをママの手で平手打ちしました
BACK INTO ENGLISH
Slap dad with mom's hand
INTO JAPANESE
お母さんの手でパパを平手打ち
BACK INTO ENGLISH
Slap daddy with mom's hand
INTO JAPANESE
お母さんの手でパパを平手打ち
BACK INTO ENGLISH
Slap daddy with mom's hand
That didn't even make that much sense in English.