Sillylicious Share definition Flag A person who is silly and sweet. Rhymes with Lily. Makes silly sound like you just wanna eat it =) Person 1: You are so Sillylicious, I wanna eat you! Person 2: Hahaha You are Silly! Sillylicious by CoderGFX February 26, 2009 0 0 Get merch Get the Sillylicious mug. Buy Now — $32.95 See more merch