fandango on core
[UNIX/C hackers, from the Mexican dance] n.
In C, a wild pointer that runs out of bounds, causing a core dump,
or corrupts the `malloc(3)' arena in such a way as
to cause mysterious failures later on, is sometimes said to have
`done a fandango on core'. On low-end personal machines without an
MMU, this can corrupt the OS itself, causing massive lossage.
Other frenetic dances such as the rhumba, cha-cha, or watusi, may
be substituted. See aliasing bug, precedence lossage,
smash the stack, memory leak, memory smash,
overrun screw, core.