1. To change slightly, usually in reference to a value. Also used
synonymously with {twiddle}. If a program is almost correct, rather
than figure out the precise problem you might just keep tweaking it
until it works. See {frobnicate} and {fudge factor}; also see
{shotgun debugging}.
2. To {tune} a program; preferred usage in the U.K.
[glossary]
[Reference(s) to this entry by made by: {Commonwealth Hackish}{diddle}{frobnicate}]