flincher

Many strafings have turned Bobby Shaftoe into a big flincher.

Chemical enhancement of these neurons produced a "super flincher" state in which any mild stimulus, such as an object gently moved toward the face, evoked a full-blown flinching reaction.

The flincher tried to strike then, while Dillan's sword was down, but Dillan slid left, putting the wounded man between them, then thrust over the falling man into the fleshy part of the flincher's arm and twisted.