Taking over a thread on a message board by taking a part of the original posted topic, twisting it around and "hijacking" the thread itself. What happens is that the original content contained in the post becomes moot and whatever the "Thread Jacker" has manipulated the content to be becomes the new content thereby "hijacking" the original intent of post. People now respond to the "thread jacker's" input and the that becomes the focus of the tread.
LK25 did an excellent job of thread jacking Koko's post on Dennis Landolt.
Koko's posted topic on Dennis Landolt (PSU Football player) and comments regarding his development on Penn States FOS site becomes indictment of whole offensive line:
KokobewareHI: "Why do I feel like this thread is about to get hijacked? What happened to my original question?"
PSUnittany: "LK25, the thread was about Landolt & his progress...and (of course) you spin it into another "the staff is lazy at recruiting - we are doomed!" threads...It's so tiresome. Please link me to any threads that you don't hijack & ruin. Thank you."
OCCalif: "Although LK25 has jacked this thread to a degree, I feel his concerns are somewhat valid- we should be concerned about our offensive line."