Related Clues:

• Stay forever, as in jail
• 'Horsefeathers!'
• Undergo decomposition
• Sit in a dump
• 'Rubbish!'
• Start to smell, maybe
• Problem affecting old lumber
• 'Dang it!'
• Turn rancid
• Old-style oath
• 'Aw, quit your joshin'!'
• Become moldy
• Nonsense, to a Brit
• Turn into compost
• It befalls fallen fruit