What is Domio Grin?
1.
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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Used to take an already impressive story or anecdote and crank it up to 11. Appended to the end of said tale as a means of making it eve..
