A joint made up of cannabis and tobacco, a stoners word to generally mean all things drug-related....
Examples where this word can be used:

"Pass me that spliffage..." Can mean a single spliff or the cannabis in general
"I need spliffage!" An exclamation of drug withdrawal. To need cannabis in general or one single spliff (joint)
by Fiona88 August 5, 2006
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To have a spliff
Spliffage?
by Web*/Babyboy October 23, 2003
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