Words to try to interject in conversation

I was given this link from Miriam-Webster Online on favourite words that are not in the dictionary. My resolution for this week is to try to use the word 'stealth-geek' in normal conversation as it is very cool in my opinion.

stealth-geek (n): one that hides nerdy interests while maintaining a normal outward appearance.

I wish I was more stealth-geek rather than just a geek...