binge and purge
slang To eat a large quantity of food and vomit shortly thereafter (as is symptomatic of the eating disorder bulimia), often repeatedly. Because she goes to the bathroom immediately after every meal, I'm starting to worry that she's binging and purging.
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.