A beam in which is used only for emergencies during sex. "cock beam" is a slang term for when you force so much cum out of your penis that it becomes a beam that is very deathly towards you and your partner and everybody within a 85 mile radius within you.
My grandpa died from a very violent cock beam.
His powerful cock beam released from his enormous penis.
His powerful cock beam released from his enormous penis.
by Tittysprinklezzzz5000 January 6, 2014
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