This refers to a brief return to substance use or heavy use (for example, for a night or a day) after a period of abstinence or controlled use, followed by a return to recovery goals. Although often called a “slip,” the term can carry moral or religious connotations (such as “a lapse in judgment” or “a lapse in grace”), which may contribute to stigma. Many professionals recommend using terms like “resumed use” or “experienced a recurrence” instead.
Sources: Recovery Research Institute