Top definition
~noun (an utbac)
1. An obsenely large duck
2. One who behaves like a thundercunt
3. A pineapple surrounded by marshmallows
4. Something that exhibits a strong odor of apples

~pronoun (The Utbac)
1. The mythical creature that is found between Wichita and Chicago at night

~verb (to utbac)
1. To exhibit the qualities of an utbac
2. To trip in an extraordinary fashion
Look at that utbac.

That utbac just threatened to murder your children.

Once I heard The Utbac ran over a white taco.

She looks like she is going to utbac on the bubblewrap.
by FightingUtbacs June 16, 2010
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