Top Definition
One or more man's sperm blended together to make delicious and nutritious protein shake that douche bags and bro's drink
My dad drinks a superman milkshake in the morning to help build muscles, and your dad helps make the superman milkshake for my dad!

Hey brospeh, I made a superman milkshake with my bros! Check out my muscles
by madjoo June 19, 2011

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