Slag 

A filthy whore who roots all the boys and loves it!

Here comes Martha the slag, she's just done the whole team

Slag by La Quandanisa March 30, 2009

slag 

A worthless drain on society . A freeloader . Usually jobless and drawing state-aid in one form or another. Can be either male or female and of any race or religion .

I'm getting sick and tired of all my taxes going to these freeloading slags that refuse to get a damned job.

slag by ultramagB August 1, 2011

Slag 

Someone who cheats on their boyfriend or girlfriend with someone else :)

For example : my boyfriend went on holiday so I cheated on him while he was away with someone else -that makes me a slag

Slag by TRUE_STORY_LOL September 29, 2018

slag 

Excess flux from a weld, usu. projecting in such a manner as to impede fit. Removed by grinding, filing, or the use of a slag hammer.

That guy shouldn't have access to an arc welder! He has an inch of slag for every damned joint!

slag by Ike January 26, 2005

slag 

Hag + slut = slag

Old hookers!

Me: Damn, that Karissa Shannon and Kristina Shannon, they're a bunch of slags.
Neppy: Agreed.

slag by yayafest January 27, 2009

slag 

a buster-ass chick. Sighting a slag is never pleasant and ruins any good vibes while around. Slags are generally cock-hungry and very persistent.

damnit! How does Lisa find us wherever we go? She's such a slag! I feel like I'm going to throw up when she's around. Well... at least Jonny'll FUUUUCK 'ER!

slag by Drew Rosenhaus January 1, 2009

slag 

Noun: A woman that enjoys sexual intercourse with many partners. She is usually very unattractive and persistent with her targets. She often goes for several members of the same team. This could include a college football, basketball, or especially hockey team. She will have no self respect, nor will she recieve any in return. And although most do not like to admit when they have become the victim of such a swamp creature, it usually inspires a good locker room story.

Other forms:
slaggery
slagtastic
slagism

"I went into Rick's room this morning to wake him up for the game, and what do I see, but the largest whale of a slag known to man."

"So Patty was makin' out with this chick at the bar, and then on the walk home Joe finger blasted her on the street. What a fucking slag."

"If you wanna talk slagtastic, lets talk about Katelyn Brown. I've never seen a girl begging for an eiffel tower quite so badly."

slag by Stop 'n Pop December 6, 2007