Today's word is................. Fluctuations I wi

Today's word is................. Fluctuations

I will never hear or see this word again without thinking of this joke.

I was at my bank today; there was a short line.
There was just one lady in front of me, an Asian lady who was trying to exchange yen for dollars.
It was obvious she was a little irritated . . . She asked the teller, "Why it change? Yesterday, I get two hunat dolla fo yen.
Today I only get hunat eighty?
Why it change?"

The teller shrugged his shoulders and said, "Fluctuations."
The Asian lady says, "Fluc you white people too"