channel = C = channel op

channel hopping n.

[common; IRC, GEnie] To rapidly switch channels on IRC, or a GEnie chat board, just as a social butterfly might hop from one group to another at a party. This term may derive from the TV watcher's idiom, `channel surfing'.

--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.