When someone suffers from extremely bad halitosis their breath smells very much like fecal matter.

People smell their breath and they actually think that they must deficate from the oral orifice if it smells that bad.
Chris leans in close while he talks to John, breathing heavily.

Chris: Hello John.

John: Fuckin hell, Take your head for a shit mate!
by The Galavanters June 20, 2009
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