What does "schlock" mean?

Any commodity that is shoddy or inferior; now, usually, writing or audiovisual content that is shoddy or inferior.

What is a synonym for "schlock"?

Common synonyms include: abominable, arrant, atrocious, awful, base, beastly.

/ʃlɒk/ noun, slang

noun, slang ·Common ·High school level

Noun

1
Any commodity that is shoddy or inferior; now, usually, writing or audiovisual content that is shoddy or inferior. US, colloquial, countable, uncountable
"Before pop art, there was such a thing as bad taste. Now there’s kitsch, schlock, camp and porn."
2
merchandise that is shoddy or inferior wordnet

"I don't know many people who like to watch schlock films."

From Yiddish שלאַק (shlak), related to German Schlag (“blow”).