splacky whacky Share definition Flag Originating from the term "Splackaveli," splacky whacky means a frontin' ass thug. Look at that splacky whacky tryin' to holla at us. splacky whacky by Leslie March 29, 2005 0 0 Get merch Get the splacky whacky mug. Buy Now — $32.95 See more merch