1. NOUN (British and Aussie) A promiscuous woman
2. NOUN & VERB(Aussie) spit
3. VERB (British and Aussie) to put down, mainly used as the phrasal verb to "slag off" something
4. NOUN When manufacturing iron ore, the scum on the surface
1. Townsvillegirls are all slags!
2. That filthy wog was slagging all over the footpath! The footpath was covered in slag!
3. New South Welshmen like to slag off Victorians 4. Hot slag!