There are a few synonyms for the phrase "power slip" that can be used when describing a sudden loss of power or control. Some alternatives include power outage, blackout, brownout, power failure, power cut, and electrical interruption. These terms are commonly used in situations where there is a temporary or prolonged loss of electricity or power, such as during a storm or a technical malfunction. They can also be used metaphorically to describe a person or organization's loss of control or influence, such as a political leader experiencing a power outage in their career. Regardless of the context, the term "power slip" and its synonyms convey a sense of instability and unpredictability.