What is Domio Grin?
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A domio grin is what happens when you go down on a girl when shes on her period and you get blood all around your mouth. It's called a domio grin because you get a similiar effect when you have lots of pasta topped with domio tomato paste.
"Man I went down on this bitch and got the biggest domio grin"
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1) When you fly in a plane over Owen Sound, Ontario and you get so excited you have an orgasm.
2) When you drive through Owen Sound and..
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When a female inserts a single nipple into a man's urethra.
I went to the Nu-Look Salon last night and Bebe gave me a happy ending..