binge and purge
to overeat and vomit, alternatively and repeatedly. (A symptom of the condition called bulimia.) She had binged and purged a number of times before she finally sought help from a doctor. Terry had been bingeing and purging for a number of years and was very, very thin.
purge someone or something from something
to rid something of someone or something. We are going to purge the delinquent members from the list. The court purged her arrest from the records.
purge someone or something of someone or something
to rid someone or something of someone or something. The medicine is designed to purge the patient of the deadly toxin. We purged the list of the delinquent members.
purge something away
to wash or flush something away. We will purge the rusty water away and then start up the pump again. We will have fresh, clean water again in no time. Laura purged away the rusty water.