The phrase "pip out" has a number of different synonyms, depending on context and usage. Some possible alternatives include "to exit," "to leave," "to depart," "to withdraw," "to decamp," "to vacate," "to bounce," "to split," "to skedaddle," "to beat a retreat," "to hightail it," or simply "to go." All of these phrases imply some degree of urgency or quick action, reflecting the idea of someone moving swiftly and decisively away from a scene or situation. Whether used in casual conversation or more formal writing, these synonyms provide a range of alternatives for expressing the same basic idea.