noun
a slang term used to describe something or someone as cool or awesome
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The new research findings are quite coolio and have significant implications for the scientific community.
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I think the party tonight is going to be really coolio, with lots of fun and good music.
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That new movie was so coolio, I can't wait to see it again!
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His ability to stay calm under pressure is really coolio, like a cool breeze on a hot day.