I'm not a grammar nazi by any means, but I do get irked by certain classes of misuse. Scare quotes drive me up a "wall". The "Grocer's Apostrophe" (When you try to make a noun plural by adding an apostrophe-S, so named for the frequency of its use in produce sections: "Carrot's: $2") makes the hair's on the back of my neck stand up. But I think what really bothers me is not the mistake, but the people who make it -- people who, 9 times out of 10, when you tell them that they've made a mistake, go on a tirade about how this isn't French, English is a language that grows and changes, and they should be able to do what they want, and how dare you try to impose your rules on their usage, and if everyone understood what I meant anyway you're just being a pedant and a jerk. (And no, I didn't understand what you meant. I guessed at what you meant. For a moment there, the automatic background task of parsing the English language stopped working and had to pop up a modal dialogue box in my brain asking for my conscious mind to intercede. My brain wasn't focused on the exchange of ideas, it was focused on working out what the hell you were trying to convey). Being wrong is no crime. But being proud of your wrongness when you know you're wrong is, well, pathological. (Had they argued that it wasn't wrong, that would be one thing. They'd still be wrong, but at least they'd be honestly wrong. But the reaction I usually get is "I accept that I am wrong, but I'm going to keep doing it anyway and you are a bad person for caring about my wrongness.").

So why is it that I find myself so fond of coining neologisms? I am generally skeptical of repurposing existing words (Just today, I had to tell someone that "Architect" is not a verb), but all too often, I find myself wanting a single vocal atom for something or other, and so I just make one up. And generally, though I may only use it once, it's a really fun word. Some recent examples:

• enchopulator: That which performs chopping, but which is not a knife: I need to chop this video file into several smaller files. I have to dig out my AVI enchopulator
• enweirden: (reflexive verb) To give (someone) the experience of having just experienced something weird. Almost equivalent to "I find (thing) weird," but less passive: Bald women enweirden me.
• bendicacity: The capacity to bend: All I know about David Beckham is that his bendicacity is emulable. (NB: For all I know, "emulable" is also a neologism)