1. The "mind manifesting" result of smoking a very potent marijuana cigarette.
2. Usually paid as a compliment to the person who rolled the joint as it was perfectly crafted with a perfectly balanced ratio of weed and tobacco.
To be under the influence of cannabis. A combination of spliff (a joint) and lifted (the results of smoking a joint). Splifted is used to describe the mind state of being very, very stoned.
Joe: Word up holmes, I just finished my final exam and it's time to celebrate. Match up?
Fred: Sure, I'll hit up Doobies after school, grab a blunt wrap, call the dopeman, and we'll get splifted!