1. (verb) To do something in a careless, lazy, or incompetent manner; to perform a task without proper effort or attention
Don't half-ass this project; put in the real work.
Não faça este projeto de forma negligente; dedique o esforço real.
2. (adjective) Done carelessly or without proper effort; poorly executed
That was a half-ass attempt at fixing the problem.
Essa foi uma tentativa negligente de resolver o problema.