A term used for the hangover of the drug Methylenedioxymethamphetamine (MDMA, Ecstasy, etc.)
"Man, I had a really bad skag yesterday."

"I hate skagging the day after a stomper."
by Skagger1 February 3, 2009
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1. Low down dirty hoe.
2. Type of drug used for recreation
"Yo Mike's girl is such a skag." But I'd still hit.
by Kill A Nigga Quik December 25, 2006
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Word used in black politcal activist, Gil Scott-Heron's famous spoken-word piece, "The Revolution Will Not be Televised" to denote an "escape drug" that will not be able to destract from the inevitable Revolution.
I'm going to do my "skag" and pretend like this shit isn't going down. I don't want to see the reality of what's happening here. I don't want to worry about it, because at the end of the day, The Revolution Will Not Be Televised.
by ~Xiola~ October 26, 2011
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An unattractive girl. Similar to skank but without the promiscuous connotation.
Yo, dawg, what you talkin' to that fugly skag?
by Professor Friday June 8, 2004
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A skag is one of the worst insults you can call someone. It refers to one that eats rotten fetuses.
Dude, you cheated on your girlfriend, you're such a skag.

Dude, that's not cool at all, totally skag.
by Lawrence creators May 11, 2009
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sarah " omg, chelsea always dresses slutty"
kate "she is such a skag"
by Kimmykim January 11, 2008
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Tracksuit wearing teenagers with greasy straightened hair, too much foundation and hardly any eye make-up. The girls have choppy hair dyed crappy colours that make you think of underage prostitutes and the guys have badger dye jobs and mullets or just annoying spiky, gelled creations. They're obsessed with Rihanna, Chris Brown, Pussycat Dolls and all forms of bad/dance music. They're usually incredibly racist/facist/conformist and the discriminate against people who are in any way different. They smoke, drink, 'finger' eachother at 11. They represent 70% of Irish teenagers.
SKAG 1: Alri, ye know tha wet gurl in 2nd year?
SKAG 2: Yeah?
Skag 1: Oi shagged 'er last noi'.
by DarkDaze. February 25, 2009
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