Ananth

... this joke takes a little bit of explanation unless you have a rudimentary understanding of Japanese. Basically, sukiyaki is a dish and daisuki means "to like a lot". So, if you really like sukiyaki and (terrible) puns, you can say "daisuki-yaki" and ... 

...

*stares in Yuko's direction* Well, I know someone who feel compelled to say it every time we have sukiyaki at her parents' house. 

One of the anecdotes on Wikipedia explains the origins of the word sukiyaki: the kanji in sukiyaki basically mean "plow" and "cook". This is because medieval farmers would heat up their plows and cook the meat right on top of them! I thought that was a neat explanation, whether or not it's true. You can read a whole lot more about it at the wikipedia article up top, or right here.