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a small town in New Jersey where the toothbrush was invented.
Person 1: Did you know the toothbrush was invented in Keansburg?
Person 2: Really?
Person 1: Yeah, if it was invented anywhere else it would have been called a teethbrush.
by heyitsrob11 November 23, 2008
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The archetypal town of white trash. This beacon of filth is located on the Jersey Shore in New Jersey.
person: Hey, look at that guy with the stained "Big Ed's BBQ" shirt and skid marks that show through his pants. He must be homeless - Let's go curbstomp him and steal his money.

boburt: No, he's from Keansburg.

person: Ah, figures.
by boburt February 16, 2004
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small, one square mile town. most people like middletown and hazlet think that they are poor even though they have the best school system in the area and are ten times more united with spirit then all of those towns combined. mostly known for being "white trash" "low lives" and drugs. middletown is just jealous because they are known for stuck up skanks, and hazlet is just known for weirdos and gays. even though people say they hate the town, they always come here for the beach, boardwalk, fun, and just all around cool ass people.
keansburg - ahh the most amazing place ever. you know itt.
by YOURMOTHERRR March 06, 2008
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mostly emo & gangsta people.
musically town.
1 square mile.
keansburg sucks teeny weenie.
by hush now child January 11, 2007
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