It is The Elbow of Mass Destruction; it is The Elbow of Mass Delight.

Possessed by One Brian Allison, it contains enough destructity to eliminate multiple climate zones at one fell drop. Survivors will be dealt with accordingly with the Chemical Elbow, the Biological Elbow, and ultimately the Nu-kyoo-lur Elbow.
"I've heard the UN is afraid to outlaw The Atomic Elbow for fear of swift repercussions."
by NewsBruin January 15, 2004
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When fucking your girl from behind in the ass, you come down with your elbow on her spine, leaving her ass clenching her ass-pipe.
This chick didn't know what happened when I dropped the "Atomic Elbow" on her.
by senorlumpy August 16, 2006
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