Dictionary.net

In the process of implementing a new computer language, thepoint at which the language is sufficiently effective that onecan implement the language in itself. That is, for a newlanguage called, hypothetically, FOOGOL, one has reachedbreak-even when one can write a demonstration compiler forFOOGOL in FOOGOL, discard the original implementationlanguage, and thereafter use working versions of FOOGOL todevelop newer ones. This is an important milestone. See MyFavourite Toy Language.[There actually is a language called Foogol].