Top Definition
the word JUMBO JUNK is used to describe a males big penis or ballsack. junk is slang for a man's penis and ballsack area. jumbo is in the word to describe the largeness of the penis or ballsack.
my boyfriend named his dick jumbo junk because he is just so big.
by bob motherfucking sagett February 14, 2009
5 Words related to jumbo junk

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