n. the penis. (Usually objectionable.) : Come on, Billy. Shake your dingle and put it away.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
dingle
"deep dell or hollow, usually wooded," c.1240, of unknown origin; a dialectal word until it entered literary use 17c.