YOU SAID:
i want to eat ten pigs in your head
INTO JAPANESE
頭の中で豚を10匹食べたい
BACK INTO ENGLISH
I want to eat 10 pigs in my head
INTO JAPANESE
頭の中で豚を10頭食べたい
BACK INTO ENGLISH
I want to eat 10 pigs in my head
That didn't even make that much sense in English.