Answer: toping

AnswerCrossword Clue
TOPINGTippler's problem
TOPINGDrunk's activity
TOPINGOn a bender
TOPINGGetting blotto
TOPINGHitting the bottle
topingTOPE, to drink liquor to excess
topingto drink alcoholic liquor habitually and to excess
topingto drink (liquor) habitually and to excess