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1.
Drunk, tipsy,or even in most cases fucked up
Later on tonight my crews getting splificated at the spot.
by Copacetic Authentic April 16, 2004
 
2.
second meaning: sundered, cloven in two (appearing in British school slang circa 1936)
"She played a mean trick on us, Annie! She ought to be splificated!"
by Siberianne January 15, 2013