a useless bitch who can not get a decent guy so instead sleeps with everyone in order to make herself feel better.
Girl: Come sleep with me

Boy: Damn you are a slag.
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A cock hungry peasant that want's sex all the time
That girl is such a slag she had sex with about 40 lads in a week
by The_sexy_ginger February 1, 2017
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The impurities that float and are taken off of molten iron.
Um...is there an example?
by another someone else May 4, 2005
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Something handy to have around at 3 in the morning when one has lucked out
I finally managed to find an old slag!!
by paul December 26, 2003
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A insult often aimed at women & teenage girls, & most of the time they are not even acting or dressing like a slag. Slag's dress & act like a prostitute, aka short skirts, 2 much make-up, high heel's, low cut top's, fish net tigh's(but they do luk kwl).

If you are NOT a slag and sum body calls you 1 just think:

Sexy
Lookin
And
Gorgeous
Chav:Oi yew fuckin emo-yew dress like a fuckin slag!
Emo:Whore!"(thinks)why thankyou, whore!"
by betheeeeeeeeeh May 29, 2007
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A man whore, so called playa, pimp, a nigga with game or a guy that gets around.
Tony is a slag for having a girlfriend the next day after his break up with Keyshia.
by RiFbUCKS July 18, 2009
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An extremely cheap hooker/whore. You do not wish to be one because you can also be called a slag master. For an example watch the movie Ali G.
by Zack Began February 25, 2006
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