rockburn 

the state of skin that has been burned by the sun through black jeans, characterized by redness and mild burning pain

I'm getting a bad rockburn right now through the window of the van, but the pain makes me feel alive.

rockburn by Lizzy Gator March 5, 2015

rockburn 

The burning rocks that fall out of the end of spliffs and make tell-tale little black holes on the upholstery.

Oi watch it, you're gettin rockburns on my sofa ya bellend

rockburn by Medzedz May 19, 2005