You enter the server and port you want your device to connect with and the login information. Then you choose whether you want to use a SOCKS proxy or not, and finally which apps you want using the tunnel (or, if your phone is rooted, you can choose to make the tunnel system-wide).
Code word (figure of speech) A code word is a word or a phrase designed to convey a predetermined meaning to a receptive audience, while remaining inconspicuous to the uninitiated. For example, a public address system may be used to make an announcement asking for Inspector Sands to attend a particular area, which staff will recognise as a code word for an fire or bomb threat, and the general public will ignore.
First page of the 1804 original edition of the Napoleonic code. A code of law, also called a law code or legal code, is a type of legislation that purports to exhaustively cover a complete system of laws or a particular area of law as it existed at the time the code was enacted, by a process of codification.