Where is your Chinese?

The little I ever knew is largely forgotten. I remember shi and bu and that's about it. Oh, there's gou pi, too, which caused my Taiwanese hosts to break up into gales of laughter, and then get very serious and ask me if I knew what it meant. (I did, so they found it hilarious again ... it's a rude term meaning, approximately, "horsefeathers" except that it's a dog instead of a horse and it's not exactly feathers either.)