"You know we're at the top when your taxi driver (or dry cleaner, pizza guy, brother-in-law, etc.) starts giving you stock tips."
It's also the only word used in both a good and a bad context. "Fuck yeah!" if you made a great trade. "Fuck them!" when "they" take your money. Count # of fucks: http://www.youtube.com/watch?v=NYeLrcWFitY
It is more than that. It is the most efficient and versatile word in the English language. https://www.youtube.com/watch?v=scQbVUmLMow Not seen on any of the above post's: Bull's and Bear's