What is "lefthanded"

Usage examples of "lefthanded".

Her sword smashed the half-open panel, and she grabbed the crossbow lefthanded, jerking it away from the dark-robed man who stood in a second recess.

Lucas, because he was lefthanded and required ease of movement in case he had to draw his gun, walked the left point and slightly to the rear.

As far as I knew at that point, a Fomit could have been anything from a lefthanded monkey wrench to a Polish steak knife.