A spin off the words "cookies and cream" it's to express when someone is fucking WINNING at a game or match. You are creaming their cookies. And it's sweet and delicious - like cookies and cream ice cream.
"I'm creaming your cookies!"

"Jesus that team is getting their cookies creamed."

"You're challenging me? Sounds like someone needs to get their cookies creamed."
by CornHustler March 13, 2023
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