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Dominio is a famous pasta sauce here in Australia.

A dominio grins refers to a man or woman who have left traces of blood over there face after licking out a girl who was on her rags.
"You look happy today Meliisa"

"Yeah, my boyfriend ate me out last night, and when he looked at me he had a Domino Grin"
by Glenn Griffiths August 22, 2006
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