Sap and Stab

In the First Person Shooter, Team Fortress 2, this is a tactic that Spies can use to take out an Engineers sentry nest. The tactic consists of sapping the Engineer's Sentry first, then backstabbing the Engineer, and proceeding to sap the rest of his equipment.

Scout: Yo' nice Sap and Stab back there, frenchie!
Spy: Many thanks.