slag

The rubbish left on top of pure iron in the blast furnace

scientific name:
'Calcium Silicate'

by kelly February 18, 2004

slag

it is a word that boys or men give to women when they have no better insult for them when women
a. refuse to sleep with them or
b. act like men
c. admit to enjoying sex

women: "sorry love your not my type"

man: "whatever then your a slag"

by Laura and Relly March 16, 2006

slagged

Past tense of slagging, To take the piss out of somebody or thing. Of Irish origin

John slagged Bob about his crappy car

by spiralsmile December 11, 2007

Slag

Apart from other more obvious meanings, Slag is a waist product produced inside a Blast Furnace. It is produced when Limestone is used to remove impurities in Iron. This can be difficult to dispose of and may form slag heaps when dumped in the environment. These are large mounds of thrown away slag.

Citizen: I hate all this waist slag polluting the local environment.

Council member: Don't worry; we are currently working on removing all of the slag heaps.

by Chemistry12345 June 25, 2011

slag

1. A man or woman who sleeps around with many people.
2. low quality Coal that is unusable.

1. Katie slepped with John on saturday and then Peter on Sunday. What a Slag.

2. Look at the Slag Heap's next to the coal Mines

by Tony June 12, 2004

slag

An all-purpose, non-vulgar word, originating from the Transformers cartoons, to be used in place of just about any profanity.

"Oh slag! The Decepticons are attacking!"
"This is a piece of slag."

by Terenn September 9, 2005

Slagged

When you're high as hell. Used by Krinks who smoke slag.

Bro, I was so slagged last night.

by Flanny2701 June 15, 2019