rip sack Share definition Flag To run really really fast. One's large strides rip one's large sack. see also tear sack "Dude, we've gotta be to the bookies in ten - rip sack." "I had to rip sack to catch the bus." rip sack by Ian January 30, 2004 0 0 Get merch Get the rip sack mug. Buy Now — $32.95 See more merch