Top Definition
Uboa is a character in a 32-bit PC game called Yume Nikki. He/ it appears in a random event in which you turn the lights off in Poniko's house, causing Poniko's sprite to change into Uboa. In this event, the room is changed slightly, and a muted "aaaaaaaaaaaah" sound is heard. He is known for surprising players.
Don't mess with the lights, or Uboa's gonna com-aaaaaaaAAAAAAAAAAA
by Alice Owen June 30, 2011
someone that's really cool
Ms. Danicek you're a uboa
by The High Roller March 08, 2013
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