:killer poke: n. A recipe for inducing hardware damage on a machine
via insertion of invalid values (see {poke}) into a memory-mapped
control register; used esp. of various fairly well-known tricks
on {bitty box}es without hardware memory management (such as the
IBM PC and Commodore PET) that can overload and trash analog
electronics in the monitor. See also {HCF}.
-- The AI Hackers Dictionary