rude slang An initialism of "read the fucking FAQ," an exclamation of frustration and exasperation directed at someone who has asked a question or series of questions that have already been answered in the FAQ (a list of frequently asked questions). Would you stop asking such boneheaded questions and just RTFFAQ? You're wasting everyone's time. I'm not responding to such idiotic statements. Either RTFFAQ, or get the hell off our forum!