To {hack}, but generally implies that the result is a hack in sense 1
(a quick hack). Contrast this with {hack on}. To hack up on implies a
{quick-and-dirty} modification to an existing system. Contrast
{hacked up}; compare {kluge up}, {monkey up}, {cruft together}.
[glossary]
[Reference(s) to this entry by made by: {cruft together}{hack on}{hacked up}{kluge up}{monkey up}]