eat grapes Share definition Flag 1: to flunk out 2: to become too lazy to do something 3: to be cowardly or weak "I asked Howard if he wanted to drop acid with us tonight but he decided to sit at home and eat grapes instead." eat grapes by loprogression January 25, 2008 0 0 Get merch Get the eat grapes mug. Buy Now — $32.95 See more merch