The term "hacking up" can mean a variety of things depending on the context. In general, it refers to cutting, chopping or separating something into smaller pieces. Antonyms for "hacking up" include "assembling", "combining", "uniting" and "joining". These words denote the opposite action of bringing things together instead of breaking them apart. For example, instead of hacking up a chicken, one could say they roasted or cooked it whole. Rather than hacking up a document, they could collate or bind it. Antonyms for "hacking up" evoke a sense of unification, completion and coherence, contrasting with the violent, destructive connotation of "hacking up".