The phrase "bug out" typically means to leave hurriedly or evacuate a location quickly. Some potential antonyms for "bug out" could include "stay put," "remain," or "stick around." Alternatively, "flee" or "run away" could be considered antonyms as well, although they carry a connotation of cowardice or panic that "bug out" may not necessarily have. Other potential antonyms might include terms like "ease out," "gradually depart," or "slowly retreat," which would suggest a more deliberate or controlled form of departure. Ultimately, the most appropriate antonym for "bug out" would depend on the specific context in which the phrase is being used.