A handle, transaction ID, or other token of agreement between
cooperating programs. "I give him a packet, he gives me back a
cookie." The claim check you get from a dry-cleaning shop is a
perfect mundane example of a cookie; the only thing it's useful for
is to relate a later transaction to this one (so you get the same
clothes back). Syn. {magic cookie}; see also {fortune cookie}. Now
mainstream in the specific sense of web-browser cookies.
[glossary]
[Reference(s) to this entry by made by: {cookie jar}{magic cookie}]