Rusty Slag 

Coroded stony waste matter separated from metals during the smelting or refining of ore.

She’s such a Rusty Slag

Rusty Slag by Digiduck March 26, 2019

RustySlav 

When someone goes to sleep mid Rust session usually stating that they will "Be right back".

Steve- DOG I saw you in Rust last night with Adam.
Me- Yeah right, I played solo he pulled the good ol' RustySlav!

RustySlav by 360noscope360 July 17, 2017