high bit

   [from high-order bit]

   1. The most significant bit in a byte.

   2.  [common]  By  extension,  the  most significant part of something
   other  than a data byte: "Spare me the whole {saga}, just give me the
   high bit." See also {meta bit}, {dread high-bit disease}, and compare
   the mainstream slang bottom line.

[glossary]
[Reference(s) to this entry by made by: {meta bit}]