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1.
What you call an adorable person who drools on his pillow when he falls asleep.

A Droolio is usually very lovable, attractive and charming and makes your day brighter.
You: "Hey, what is this wet spot on my pillow?"
Droolio: ...zzz.....
You: "Aww, Droolio!!"
by PamBeesly August 22, 2009