shiritori (from "ass" and "take" in Japanese). You take turns and you name a word that has not been mentioned before and that starts with the Japanese letter that the previous word ended on (hence the name of the game).
Yesterday I was Shanghaied into playing this game, but with pictures instead of saying the words out loud. So you have to figure out what the guy before you drew, given that the word started with the last letter of the previous drawing. And then you have to draw something starting with the last letter of the latest drawing.
I like the "tanuki" "fox" ("kitsune") "rat" ("nezumi") section in the middle of the game above.