double-click

Short definition from Wiktionary

Noun

1. 1
   The action of pushing the button on a mouse twice in quick succession in order to perform a different task that would be performed from a single-click or triple-click.
2. 2
   Alternative spelling of double-click.

Verb

1. 1
   To push the button on a mouse twice in quick succession in order to perform a different task than would be performed from a single-click or triple-click.