Related Clues:

• Get a whiff of
• Eat quickly, in slang
• Acquire oxygen
• Pipe smokers usually don't do it
• Take a hit
• Take in air
• Dumpster emission
• Smell the coffee, e.g.
• Take a drag
• Take in the air?
• Sample the fresh air
• It may be picked up in a trash heap
• Detect, as a rat?
• Clinton said he didn't do it
• What skunks do