defenestration n. [mythically from a traditional Bohemian assassination method, via SF fandom] 1. Proper karmic retribution for an incorrigible punster. Oh, ghod, that was awful ! Quick! Defenestrate him! 2. The act of completely removing Micro$oft Windows from a PC in favor of a better OS (typically Linux). 3. The act of discarding something under the assumption that it will improve matters. I don't have any disk space left. Well, why don't you defenestrate that 100 megs worth of old core dumps? 4. Under a GUI, the act of dragging something out of a window (onto the screen). Next, defenestrate the MugWump icon. 5. [obs.] The act of exiting a window system in order to get better response time from a full-screen program. This comes from the dictionary meaning of defenestrate , which is to throw something out a window.