slag

1. N the fused material formed during the smelting or refining of metals by combining the flux with gangue, impurities in the metal, etc. It usually consists of a mixture of silicates with calcium, phosphorus, sulphur, etc 熔渣 (Also called cinder)→see also basic slag

2. V to abuse (someone) verbally 以言詞欺辱[英國英語] [slang]