Famous musician who has become a rorschach test for the music-listening world at large. If you dig Jack Johnson, you're either an unwashed ignorant member of the common sheepish folk, or deeply into weed in all it's forms. If you don't like his stuff, you're either into "good" music, hateful of relaxation, or aware of him selling out the good surfer name. It's all in interpretation really.
Example One:

Fan: "I like that new Jack Johnson album!"
Critic: "Why?"
Fan: "Because, it's, uh, relaxing...and, uh...uh...relaxing."
Critic:"Is that all? His music is miserable and generic. How can you enjoy absolute dung like his (I won't even say music because it degrades the very concept) 'surfer' sound?"
Fan: "Baaaa."

Critic: "I hate the new Jack Johnson album."
Fan: "Why?"
Critic: "Because it's cliche, simple, boring, without edge or real emotion, and lacks all good things I like in pop music."
Fan: "Here's what I think: Get off your high horse and try to understand his appeal to people. In this busy, hectic world he offers a break and release from the pressures of daily life, making people happy in the process, and if that's bad then sue me. Why don't you remove the stick of music snobbery from you-know-where and get a life?"
Critic: "You just criticized me. That's my job."
by teamugcollective July 7, 2010
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The code word for sex, used by men.
"Dude, last night i was with my girl and i got some Jack Johnson.
by Tmolie April 7, 2011
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Another word for a talentless loser who's music will result in you hurting something or someone. This cheesy, boring, repetitive music is from a wave of crappy acoustic artists such as James Blunt.

*Challenge* Listen to a Jack Johnson album and pick out one song from another.
"Look at that prick, he's got no talent at all, what a fucking Jack Johnson"

by Jackjohnsonhater July 17, 2006
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Hawaiian singer, as well as surf movie director, ex-pro surfer for Quiksilver, and a marijuana smoker <-(not known by many), famous for his acoustic guitar skills, singing voice, and mellow mood songs. You can listen to him while in any mood and he does not have any homosexual roots like some other definers on this site think. He is a great American musician and influences many modern bands.
Jack Johnson smokes weed and his music is fucking amazing.
by ILiveInNewJersey December 25, 2008
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A modern beach hippie musician influenced by Ben Harper and Phish. All chill kids who know how to smoke and have fun love to listen to jack johnson
"let's have a party on friday"
"you bring the dank and mellow"
"ok, I'll bring my Jack Johnson CD"
by lizzlemynizzle July 24, 2005
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A whiny Bitch with a guitar that every one loves for being trendy.
Jack Johnson is a Douche
by Jak6508 January 28, 2010
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In WWI, a nickname for artillery shells. The name was mostly used by the Canadian soldiers.
The trenches may have been eight feet deep, but the men in them never felt safe from the Whizbangs, Minnies, Jack Johnsons, Rum Jars, and Coal Boxes, whose ingenious nicknames masked their deadly purpose.
-Vimy by Pierre Berton
by K to the C October 24, 2006
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