memory hole
/ˈmɛm(ə)ɹi ˌhəʊl/noun
University
1
A figurative place to which information is deliberately sent to be forgotten, or to which forgotten or lost information ends up; nowhere, oblivion.
2
A fragment of physical address space which does not map to main memory.
3
Synonym of memory leak (“any of several faults in the memory allocation logic of a computer or program whereby parts of memory become hidden or unusable”).
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