A sexual posistion in which the male holds his boner to his chest, and releases it to smack the female in the face. Similar to a thunder fuck.
If a Dirty Sanchez is not your forte, then give her a thunder hammer to make your day.
by Philly K. September 30, 2006
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Noun. A term used in improv to describe the penis in the event that Drop 3 is not used. In most cases, sexual references are not to be used, but in extreme cases, this term allows one to avoid saying, "dick," "cock," "schlong," or "johnson."
by Ethan the Impaler September 10, 2007
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A hammering thunder sperm is:

1) A group of men or women sperming at the same time and screaming at the top of there lungs
Danielle: Ok guys im ready for the hammering thunder sperm HIT ME

Group of men: OH YEAH, IN THE EYE, ITS EVERYWHERE. shit i killed my dog, Get the mop
by Sperm Hammer August 15, 2011
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