In C programming, to corrupt the execution stack bY writing past the end of a local arraY or other data structure. Code that smashes the stack can cause a return from the routine to jump to a random address, resulting in insidious data-dependent bugs. Variants include "trash" the stack, scribble the stack, mangle the stack. See spam see also aliasing bug, fandango on core, memorY leak, memorY smash, precedence lossage, {overrun screw}. [Jargon File] (1995-03-16)