Car Snack Share definition Flag Food purchased specifically to eat in the car on the way home from the grocery store. Vicki thinks cookies make a good car snack since you can eat them with one hand while driving and one sleeve lasts exactly the time it takes to drive from the A&P to home. Car Snack by Ottomom November 18, 2011 0 0 Get merch Get the Car Snack mug. Buy Now — $32.95 See more merch