- Characteristic of hack, or inferior writers.
- (computing, informal) Using, or characterised by, hack: poorly designed workaround.
- 2003, Erik T Ray, Learning XML A hackish solution is to use code switching, a technique of replacing a byte with a sequence of bytes headed by a special control character.
- 2006, Bruce Perry, Ajax hacks The first two hacks in this chapter provide, well, hackish solutions to that conundrum.
- (computing, informal) Characteristic of hacker, especially slang; e. g., hackish humor.