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1.
An African-American adult film character from the 1970s/1980s. The actor who played the character wore an abnormally large prosthetic penis.
"Damn, that Long Dong Silver sure was a freak of nature!"
"Dude, he was just wearing a big-assed dildo."
by Jake in NYC November 13, 2005
 
2.
a black porno star from the early 80's
long dong silver is the star of this porno
by robert cashion October 08, 2003
 
3.
This term is derived from the fictional pirate from Treasure Island 'Long John Silver'. It describes a gentleman equipped with a penis of staggering proportions. To be referred to in this way is a great source of pride to any man, as it implys that your dongbone has not only a great size, but a great reputation.
James: Carla why are you limping, with blood trickling down your knee? Hast thou fallen over, cripple?
Carla: No, I was fortunate enough to share a bed with George last night, he truly is Long Dong Silver!
by SuaveG July 26, 2006