Not so much acronyms, but several popularly misused terms that drive me nuts: * "physically", e.g. "I physically deleted the files", when in fact the meaning i

Not so much acronyms, but several popularly misused terms that drive me nuts: * "physically", e.g. "I physically deleted the files", when in fact the meaning is more like "actually", "manually", or "using one fewer layers of abstraction", since physical deletion would presumably involve a hammer or shredder or something along those lines. * "special characters", e.g. "the application breaks when users input special characters in the username field". Often people use this term to refer to anything other than a-z0-9, including things as mundane as spaces or punctuation. To my mind, any character that exists in 7-bit ASCII or has a dedicated key on the keyboard just isn't that special!