The phrase "copped some zs" refers to someone getting some sleep. Antonyms for this phrase include being wide awake, alert, conscious, and vigilant. Other antonyms for "copped some zs" could include activities that involve staying awake, such as working, studying, or being engaged in some form of physical activity. These antonyms highlight the opposite of rest and relaxation, suggesting a state of heightened concentration or awareness. While getting enough sleep is important for overall well-being, sometimes we need to stay awake and focused to achieve our goals or complete necessary tasks.