from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. Computer Science To click the secondary button of a mouse having two buttons with different functions.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To press the right-hand button on a computer mouse.
- v. To activate an item on the screen by right-clicking while the pointer is over it.
Sorry, no etymologies found.