Green’s Dictionary of Slang

elvis v.

[a play on the SAmE sideburns (UK side-boards), which adorned the cheeks of the singer Elvis Presley (1935–77)]

(drugs) of a cannabis cigarette, to burn unevenly, proceeding faster down one side than the other.

‘jackherer’ ‘reduces elvising too’ posting 25 Jun. at Smokedot.org 🌐 this technique almost entirely prevents the effect known as elvising (burning down one side...).