harries_technique
A method of holding a handgun and a flashlight simultaneously while keeping the gun steady and the flashlight pointed in the same direction, developed by Michael Harries, a shooting instructor and retired US Marine.
"[T]he flashlight is maintained in an "ice pick" grip while the handgun is thrust forward, at which point the non-shooting hand crosses beneath the handgun-retaining arm. The technique finishes with the backs of the hands against one another, creating isometric tension for stability." (Source
Examples can be seen here here and here