Possible Clues:

• Spending or eating binge
• Unrestrained self-indulgence of corrupt peers
• Welcoming pair to spend time with in bout of self-indulgence
• Not your average shopping trip
• All-out shopping trip
• Period of excessive behaviour
• Self-indulgent outing
• Big shopping sesh
• Pair in York perhaps binge
• Unrestrained indulgence