Today. About 3pm. I was heard to say "w00t!, w00t!, w00t!".
I'd resisted for so long.
The utterance of these three words has such a serious meaning. I'm now Fully Geek.
And yes, the occasion did demand it. You try to work out why your data binding isn't working when someone had overloaded the standard Data Binding properties and implemented their own form of it and me without a clue that they'd done it. So, after I'd uncovered this and got it working (although a refactoring is yet to come), I said those three words.