tube
1. n. A CRT terminal. Never used in the mainstream sense of
TV; real hackers don't watch TV, except for Loony Toons, Rocky &
Bullwinkle, Trek Classic, the Simpsons, and the occasional cheesy
old swashbuckler movie (see Appendix B). 2. [IBM] To send
a copy of something to someone else's terminal. "Tube me that
note?"