Someone who perpetuates Judeophobic/antisemitic/antiZionist false conspiracy theories that they read on the internet or learned from their racist friend or relative. Tropecycler usually does not know a single Jewish person and relies on their racist friend or relatives for incorrect notions about Jews and Israel.
“Free Palestine” and “Israel owns the USA” are comments you would typically see written by a Tropecycler.
It’s like recycle but with #judeophobic or antisemitic or zionophobic tropes. Such as referring to Israelis building apartment buildings as “settlers building on Palestinian Land.”
Israel is an apartheid is an example of tropecycle.