To coffee house is to say a statement in order to deceive your opponents from the true nature of your hand. For example, a player may say, "I'm being priced in," when calling and trapping with aces.
Example: I was pretending to be disinterested in the hand and even pretended I didn't know it was my turn when it came to me. I said, "Oh, is it my turn?" Little did they know I was coffee housing and I had pocket kings.