A person who is into scat i.e. sniffing and wallowing in shit, and possibly shit eating. The shit grazer particularly likes to get his dose of shit directly by eating and licking arse. See also Anilingus.
Dental hygienist to Dentist:
"Oh no! That shit grazer Timmy's back again. You can see he's just had his face up a butt crack by the brown trail on his nose. Where are the extra large dental dams?
by silkpouch September 5, 2007
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