A shortened form of the word "directions." It comes in handy when texting someone for the location of their house or a bar. Instead of saying, "Can you give me directions?" you can text "What are the direx?" Actually, you can simply text "Direx?" to let recieving party know you don't know how to get there.
First text to friend: "This party is the bomb. Get here!"
Text reply: "What are the direx?"