1. To be wack. Worthy of being mocked. Weak, chumpish, and generally to be avoided.

2. Mocking term of friends and/ or enemies.

It's origins lie in New York City, and with a national commercial campaign by Burger King where it stated "Don't be a herb, get the Whopper." In it Herb was a combination of a nerd and a moron.
Yo wassup herbs, what time we drinking?

This party got way too many herbs, I'm out.

That kid asks way too many questions, he's a straight herb son.
by TooDarkMark December 7, 2012
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a person , most commonly male, that is generally considered as uncool, or failing to accord with the values or styles (as of dress , or behavior) of a particular group: not accepted or admired as cool or proper.
He's a herb.
by Liv Demarco March 10, 2011
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Someone who tries too hard to be cool. An overzealous poseur. When you think you're on some next shit, but you're really on some bullshit
Man, I saw that herb on Bedford Ave., wearing a mesh hat and a Great White shirt, and carrying a can of Sparks.

Why is R. Kelly wearing that Lone Ranger mask? Dude is a herb.

Tell that herb to cool down. No one else wants the DJ to play electroclash.
by GullibleZine August 13, 2006
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It's absolutely clear that ganja herb is the healing of the nation
by Herbsman420 March 10, 2010
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A person who is a follower who has no life, who can not think on their own, a Loch
Danny is a herb because what ever ruben says for him to do, he does
by pimpwitalimp February 19, 2008
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