Possible Clues:

• Indulge excessively, in self-pity perhaps
• Roll in mud
• Indulge (in)
• Roll about (in mud)
• Indulge
• Roll in the mud
• Roll about as in water or mud
• Luxuriate (in mud, muck)
• At last, pemit it to luxuriate
• Luxuriate (in)