transitive phrasal verb hack up computing: modify quickly 1
transitive phrasal verb hack up bring up by coughing 1
noun Definition of hack up in Technology (jargon) To hack, but generally implies that the result is 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. 1