DEADBEEF

/dedbeef/ , n. The hexadecimal word-fill pattern for freshly allocated
memory under a number of IBM environments, including the RS/6000. Some
modern debugging tools deliberately fill freed memory with this value as a
way of converting heisenbugs into Bohr bug s. As in Your program is
DEADBEEF (meaning gone, aborted, flushed from memory); if you start from an
odd half-word boundary, of course, you have BEEFDEAD. See also the anecdote
under fool and dead beef attack.