ITT

ITT = In This Thread...

An acronym commonly used on internet messageboards and imageboards, including 4chan and /tg/. It is short for "In This Thread". The acronym is often used by original posters to briefly indicate the desired content of their thread; for example, "ITT, we make a Space Marine chapter" or "ITT, Necron porn!". It can also be used by later visitors to the thread, often to express alarm (i.e. "what the hell is going on ITT") or to humorously summarise the contents of the thread so far (i.e. "ITT fa/tg/uys fail at physics").