Penis. Often thought to derive from the German "schlange" meaning "snake."

Also possibly from the Russian word for "hose" which is pronounced "schlong."
I showed her my schlong.
by Masen April 6, 2006
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A very large, penis. Generally 9-550 inches long. Pubes are generally excepenally small. Mega penises like the schlong only come around every 3000 years.
MmMmMmMmMmMmMmmmm cody has a schlong and i rode it all night looong.... YUMMY!!!!!!
by bobthehairypenis December 6, 2009
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A schlong is just another dork, wang or johnson.
It ain't particularly large; the impression it is so is cleverly conveyed by the *long* bit that sticks out of its rear end.
Laura: HAHAHAHAHA! Its so funny that schlong sounds large becuz it has something long stuck in!
Mike: Shut up bitch and spread those cheeks.
by Hugh G Rection February 19, 2005
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A Penis.

From the German word Schlange, which literally means snake. Schlange can also refer to a queue or a line. Germans will generally refer to the penis as a schwanz, literally tail.
I don't wanna hear about your schlong.
by Andrew Schwartz June 3, 2005
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