crack up

v 1: suffer a nervous breakdown [syn: {crack}, {crock up}, {break

up}, {collapse}]

2: rhapsodize about

3: laugh unrestrainedly [syn: {break up}]

hack up

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}.

[{Jargon File}]