Top Definition
The act of going into a discussion and hijacking the topic into some self serving diatribe that only the topicjacker cares about.
I was running a perfectly reasonable conversation about rabbit breeding until some topickjacking religious nut came in an got everyone worked up by talking about her theory of how rabbits are the evil demon filled workers of Satans minion.
by thechurchfodave December 15, 2010
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