זֶה אֵינִי יוֹדֵעַ מָה הוּא

ביטוי (אנגלית)

I don't know what this is.

הגדרה (אנגלית)

I have no idea what this thing means. I don't know what it is.

("From my threats to life - whoever eats a tartemar of meat and drinks half a glass of Italian wine... Rabbi Zeira said: I do not know what this tartemar is, except that from what Rabbi Yosei doubled in wine - a double portion of meat was found, and a tartemar of half a glass was found" - Sanhedrin, A.A.)