Familect

Near-synonym: microdialect

A familect is, as I mentioned before, a kind of microdialect.

David Crystal, who wrote the book's afterword, expanded on what he described as these dialects of the home, or familects, in his blog: [...]

Some followers even tweet back in aliebn-speak: a spirit of friendly linguistic play that's more like a familect than a stuffy Oxford Common Room.

If a familect exists within a family unit, then an online community’s fanilect expands exponentially, like invisible strings across distance and time.