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Another way to say "Hello", as coined by Megamind.
Nick: Oh shit, there's Ellis!
Louis: Ollo!
Ellis: And ollo to you too!
Nick: What...?
by youwillneverknow! September 09, 2012
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Ollo is a blue ball made up of clay with big, cartoony eyes. Only its eyes look cartoony while the rest of it looks like claymation. It is the titular character of a children's computer game called "Ollo in the Sunny Valley Fair".
Person 1: My daughter loves to play Ollo.
Person 2: What's that?
Person 1: It's this cute little computer game about a blue ball.
by Trisha1 September 13, 2016
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Adjective. The perfect combination of sexy and cute, primarily a description for females.
Do you see that girl over there? I think I'm in love, she's so ollo!
by Sasuke8888 January 03, 2012
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