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2.
A doobie containing both Marijuana and Tobacco, for the purpose of making it much more smooth.
"Oh man I could kill for splife right about now."
by Banana Boy September 25, 2005
 
1.
Parasites similar to mites that dwell on the head. Or inside...for they have the ability to travel to the brain and subtly take over a human's consciousness.
"Hey, dude, is that a splive on your head?"

"No, you insolent human. That is my mother."
by Andrew Morgan June 21, 2005