A female who is a bit too available, sexually. She often presents herself in too little clothing and, in some extreme cases of slaggery, she has been known to perform oral sex on boyfriends that are not her own.
Do you really think that woman is a slag?

Yes, i saw her with a few different men in the span of a bakers dozens worth of days.

Oh, so what does that make you?

A slagaholic..
by shootintildeath January 23, 2013
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!
by Drew Rosenhaus August 10, 2007
a word used against women/girls by men/boys to insult.
it basically means someone who has slept around alot or has done other sexual things, people often use this in irrelivent situations, by saying it to someone who isnt a slag at all.
person one - i shagged him last night
person two - you slag!
by anymous :) May 29, 2010
Hag + slut = slag

Old hookers!
Me: Damn, that Karissa Shannon and Kristina Shannon, they're a bunch of slags.
Neppy: Agreed.
by yayafest January 27, 2009
British Slang

In normal society, slag is a derogatory term meaning frequently promiscuous and immoral. Typically a woman described as a slag might also be described as easy or cheap. It is strongly associated with women who, without consideration of there partner of the moment, seeks sexual gratification. The word is very offensive to women.

In the swinging scene, where there are tiers of sexuality, the word is associated with high sexual status, and is therefore coveted. Remarkably, as it is so offensive in everyday use, it is often used during intercourse as a compliment in recognition of sexual skill.
A girl who loses her partner to another woman might describe her as a slag.

A woman of exceptional sexual talent might be described as a slag within the swinging scene.
by NewWorldOrder October 23, 2008
Cheap low-life female, usually predatory,trashily dressed who'll offer herself for sex at every opportunity, an expert at 'Man-snatching': men who already have a respectable female partner.
A destroyer of relationships, slutty, bad-mouthed, overly made up harridans who love any form of sexual contact, often at the expense of established relationships.
Rachel is a right slag!, three times this week she's hung around the pool room and has succeeded in shagging four married men!
by Cojiee November 03, 2007
1. A man or woman who sleeps around with many people.
2. low quality Coal that is unusable.
1. Katie slepped with John on saturday and then Peter on Sunday. What a Slag.

2. Look at the Slag Heap's next to the coal Mines
by Tony June 12, 2004
A word that makes it easier to identify ignorant and insecure people who are confused by the concept of a woman who openly enjoys sex and will use it to indicate that she is less worthy of respect, despite desperately wanting to get laid as often as she does.

A woman who has realised that there is no harm in her enjoying sex and consequently intimidates people who are frightened by progress as they believe that it makes their dicks smaller or could make their husbands leave them.
I can't believe that there are many men that have enjoyed healthy, beneficial, harmless and consensual sex with that slag and she really liked it!

What if my partner is tricked into having sex with that slag and leaves me? She should be ashamed of herself.
by Dirtykicks November 11, 2015

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