Top Definition
A derogatory name for a person who sits around and rubs their "junk". Another name for someone who would be considered a "tool bag", loser, dork, or hoser.
That guy that just tried hittin on my girl! What a junkrubber! My buddy paul and I were just sittin around, drinkin some beers, and some junkrubber just came over and tried bumin a beer! That junkrubber needs to go buy his own damn beer!
by Michael Gianechini April 28, 2008

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