slag off
(transitive) To purify by melting and removing slag.
Definitions
UK
#1·Apr 27, 2026UK
(transitive) To purify by melting and removing slag.
There is a lot of copper oxide, but I can remove that by melting everything and slagging it off.
Heard in the wild
“that the public like, shadow the drift rightwards and slag off your opponents and the people that vote for them, that's definitely the 'moral' way to do it. Bound to work. 🤦🏽♀️”
— Bluesky· May 2026
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UK
#2·Apr 27, 2026UK
(UK, Irish, Commonwealth, slang, transitive) To talk insultingly to or about someone or something; usually one who is not present.
I am forever slagging off some poor harmless dude or pitiful demented twitcher[.]
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