Apropos, the command in Terminal (MacOSX)bash. In Learning Python the Hard Way, the command apropos means too find what man page is appropriate, or I googled to find a better worded definition and it said what I asked you.

It was a geeky stupid joke. Lol it's funny to me, because Freya said that I don't seem to understand what's appropriate to post on this site or not, so I guess if I were a computer trying to figure out whether a post is appropriate or not, I would be apropos. If the computers only output was funny memes.