A hacker's attempt to steal personal account information by replacing the site information on an inactive browser tab with identical images that link instead to the hacker's site. The user is requested to re-log in to the site that was opened in a tab they left open in their browser while visiting other sites, such as email, PayPal, social networks or a bank, and when the user supplies their password to re-log in, their login information is sent to the hacker.
Hey man! Don't do it. Check the site URL or just close the tab and start over, to make sure no one is tab nabbing you.
by mavenflo July 21, 2010
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a word used comonly by red necks, and huge guys you have no anger in them..
Dang nab it theres a nail stuck in my forhead DANG!!!
by ayrton October 8, 2005
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1. v. The act of having been invited to hang out at someone's house and when you arrive at the house the person who invited you ends up wanting to go to an undesirable location(i.e. Hick bar, or Electro Club).
I just got here and now you want to go studio 54?!? Man I knew I was getting K-nabbed!!! I'm going home!
by Germanismyynamedamn July 20, 2005
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a rule to reject someone from taking part in some activity based on a lack of competence. (it's a joke)
Johnny: I can't log on, anyone else having trouble?
Billy: The nab rule's effect tonight.
by X___r September 24, 2010
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To physically attack someone, in self defense or out of anger
If he doesn't stop harassing me, I am going to kick a nab on him!
by Lo Tee June 1, 2022
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Nab-a-Dab is the routine of a weed oil or shatter-dabber who does it daily and before anything at all, going to cook? Nab-a-dab. Moms told you to take the trash out? Nab-a-dab. ‘Bout to leave to work, nab-a-dab!
1: “Yoooo lets roll we gotta get to the game...”.

Too : “Alright I’m ready let’s roll but imma nab-a-dab first man my nerves are eight-sided, chill.....30 seconds bro”

(Dabs, gets a nice calm squint, smiles, goes)

That’s a Nab-A-Dab. May also become a little convenience station in a dispensary too.
by Treebonics January 25, 2019
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when one fag hag intentionally attempts to steal the affections of anothers fag.
B-Rug: I was talking to my girlfriend and she said she wanted to fag nab you...? whats that mean

Homo: haha good luck my hag's gonna put up a fight
by B-Rug January 21, 2009
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