How do you say "翻墙" in English? I don't think there is any standard phrase for this, but "access blocked sites" would work. For example: 你怎么翻墙？ could be translated as "How do you access blocked sites?"

I guess it's proxy

proxy=代理

翻牆 means to get around a firewall, to 'get over the wall'. a proxy is something that your internet traffic flows through. so you can use a proxy that is not for 翻牆, or getting over a firewall. i think 翻牆 has a specific meaning for mainland china, to get around the state firewall.

i think its mean "Over the wall" ...

translated it means over the wall...