Possible Clues:

• Refuse to move on, say
• Delight in everything: wonderful person to have around
• Lie (in mud or water)
• Luxuriate (in)
• At last, pemit it to luxuriate
• Luxuriate (in mud, muck)
• Roll about as in water or mud
• Roll about in the mud
• Roll in mud, as a pig
• Rejoice in