YOU SAID:
Andrew doesn't know about popular meme culture because he lives under a rock
INTO JAPANESE
アンドリューは彼は岩の下に住んでいるので、人気のあるミーム文化について知らない
BACK INTO ENGLISH
Don't know about Andrew he lives under rocks because of popular culture meme
INTO JAPANESE
彼は大衆文化ミームのため住んでいる岩の下アンドリューのことは知らない
BACK INTO ENGLISH
He does not know that pop culture meme for live rock under Andrew
That didn't even make that much sense in English.