Mostly used as an alias for prison, mostly in political debates/memes. Silivri is a district in Istanbul home to the largest prison in Turkey, Silivri Ceza Infaz Kurumlari.
A: Lmao look at this RTE meme
Judge:Lmfao tag me btw go to silivri
A Turkish meme about going to prison, usually used after memes about RTE or opinions against RTE. Translation is "Silivri is cold", which is a referance to "Silivri Ceza İnfaz Kurumları Kampüsü (Silivri Penal Execution Institutions Campus)", Europe's largest and most secured prison.
Dude 1: bro look at this meme about RTE lol
Dude 2: lmfao Silivri Soğuktur tho