Doi, similar to duh, an American Englishslang expression used to imply that a statement is extremely self-evident or obvious. Also Doi can be used if you have no anwser or come-back. For example, "we all no *** isn't a tree, right?" "Doi.."
Doi, expression, can mean anything in the world at all. Example: "Woop, i just won the lottery!" "Oh, good Doi!"
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