blimburn 

where cannabis ash, falls onto the skin causing a burn

smoking soapbar can give you hardcore blimburns

blimburn by joshthedon July 26, 2004

blim-burn 

a small hot bit of plastic, boot polish, tar etc soap bar that falls from your spliff onto your clothing leaving a burn hole

"Last night I went out driving in my car,
I sparked up a fat spliff of fucking Soap Bar,
A Blim-burn burned right down to my dick,
And while I was distracted, I fucking crashed into a
Brick wall, the car was fucking battered,
The bonnet flipped up and the windscreen shattered,
You’re better off smoking The Green instead,
Cause it don’t Blim-Burn and it’s better for your head"
Goldy Lookin Chain, Soap Bar from The Greatest Hits Album

blim-burn by Cpt. Cronic September 1, 2006