spack run Share definition Flag To run in a public place, flailing one's arms and wailing in a high-pitched voice, in the manner of a spacker. 'I bet him a fiver he wouldn't do a spack run down the entire length of the platform. He did! spack run by The Moai March 16, 2005 0 0 Get merch Get the spack run mug. Buy Now — $32.95 See more merch