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43.
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
 
22.
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
 
23.
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
 
24.
Short for slut wagon. Skanky and promiscuous girl.
Look at that slag, I heard she got brown eyed last tuesday.
by Sym Dawnderson January 26, 2009
 
25.
Verb: To swing your penis with the same motion and force that one would swing a baseball bat into a girl's face. At the same time, one must ejaculate whilst the penis strikes the girl's face, leaving a thick glaze of sperm on her cheek.
"Adam: Hey, what'd Jess and you do last night?

Luke: She was using too much teeth, so I slagged her to teach her a lesson."
by The salt of the earth March 25, 2013
 
26.
A woman that fucks around behind her friends or lover's backs with numerous men, with no feeling what so ever for the people she is hurting. A trashy, deceiving, back stabbing, lying heart breaking, cunt. Doesn't care what she does or who she does it to, as long as people are talking about her, weather it be good or bad, she's happy. Wherever she goes, drama is sure to follow.
"You slept with my boyfriend, my best friend, and my brother !"
"haha, yeahh, I hope my boyfriend doesn't find out."
"You fucking slag."
by lolbitchh November 03, 2011
 
27.
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.
by ultramagB August 01, 2011
 
28.
A female who has at least 2 out of 4 of the following characteristics- sloppy, lousy, annoying, and grose. The fact that sloppy/grose and lousy/annoying are closely related is no mistake and makes the term slag very hard to avoid for slaggish girls. Can also be used to describe males, but this is frowned upon.
"Burt,she was a SLAG!"
"why?"
"She was grose and sloppy and overall lousy."
"yeah....slag."
by Burt "Byrdman" Fahy May 03, 2008