Lilo Share definition Flag From 'lifelong' + 'lie low.' Pronounced lahy-loh. Friendship that can lie dormant for years only to pick right back up instantly, as if no time had passed since you last saw each other. Lilo, I have waited for you for years. I am glad to see you. Lilo by Masanja January 19, 2020 0 0 Get merch Get the Lilo mug. Buy Now — $32.95 See more merch