网上聊天英语通常被称作"online chatting"或"internet chatting"。这个说法来源于英语中"online"和"chat"的组合。"Online"指的是网络，"chat"指的是聊天。

例句：

I love online chatting with my friends.

online chatting is a great way to connect with people from all over the world.

Have you ever tried online chatting? It's a lot of fun!