mouse ahead vi.
Point-and-click analog of `type ahead'. To manipulate a
computer's pointing device (almost always a mouse in this usage,
but not necessarily) and its selection or command buttons before
a computer program is ready to accept such input, in anticipation
of the program accepting the input. Handling this properly is
rare, but it can help make a WIMP environment much more usable,
assuming the users are familiar with the behavior of the user
interface.