Unless you were born in the late 90's don't waste your time with "My Word Coach" for the Nintendo DS. I've been playing the game for about a month now and I keep getting the word "Gopher" over and over again. But this was really the icing on the cake.
I don't know about you, but I don't have occasion to use the word "gopher" in a sentence that often. (Except when I'm talking about how lousy "My Word Coach" is.) And I'm pretty sure I've never struggled to verbally express myself and had the word "gopher" come to the rescue. I also can't think of an instance when some people were talking about a gopher and felt embarrassed that I didn't know what they were talking about or nervous that someone might find out.