YOU SAID:
That's one helluva guy!
INTO JAPANESE
それは一人の地獄の男です!
BACK INTO ENGLISH
It's one hell man!
INTO JAPANESE
それは一つの地獄の男です!
BACK INTO ENGLISH
It's a hellish man!
INTO JAPANESE
それは地獄の男です!
BACK INTO ENGLISH
It's a hell man!
INTO JAPANESE
それは地獄の男です!
BACK INTO ENGLISH
It's a hell man!
That didn't even make that much sense in English.