CU
1. Abbreviation for the Control Unit.
2. Shorthand for See You, CU is sometimes used in text-based communications such as chat. Below is an example of how this could be used.
User1: Ok I've G2G
User2: Ok CU
<User1 has disconnected>
3. Linux command, see the cu command page for additional information about this command
Also see: Chat definitions, CYA, G2G