Related Clues:

• Reason to clean the fridge
• Indication that it's time to take out the trash
• Squiggly lines in the funnies, maybe
• An old gym sock may have one
• Gym bag smell
• Unwelcome smell
• What ''natural'' natural gas lacks
• You can smell it from a dumpster fire
• Litter box emission
• Noted characteristic of a corpse flower
• Reason to pinch your nose
• Olfactory indication
• Dumpster smell
• Dirty laundry might give one off
• Funky chicken quality?