kellilyn Share definition Flag A great, beautiful girl who will always be there for you. She doesn’t play around with anyone who messes with her or her friends. She’s hot and will never cheat on her boyfriend(s). Omg! Kellilyn your so nice for standing up for me!!! kellilyn by Kellilyn October 16, 2019 0 0 Get merch Get the kellilyn mug. Buy Now — $32.95 See more merch