Verb. Performing a task in a lazy, cowardly, half-assed manner. Typically the result of sloth, incompetence, trembling fear or approaching senile dementia.
He really muellered his final research paper and received a grade of D-.
by Big Eye in the Sky November 18, 2019
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When having intimate sex and your penis goes flaccid for no reason.
I was having sex with my soon to be wife and I received a Mueller and she broke up with me. Then I proceeded to cry to my friend Salinas.
by Rafael salinas December 14, 2019
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v. To completely evaluate a situation and present an undisputable analysis, which is promptly disputed.

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You think Duke has been a better team than Gonzaga over the last two decades? Fool! Let me just muellerate here for a while.
by gnostic3 March 24, 2019
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When you get federally prosecuted by Robert Mueller and his Federal Bureau of Investigation.
George Papadopoulos got muellered.

Did you hear about Michael T. Flynn getting muellered?
by S. Jay Double You February 28, 2018
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Verb - to mess up in life, a disappointment, trouble
Dude, I just got Muellered when he gave my change back! Loaned him $150 only paid back $41, totally Muellered!
by RealOGgrandma78 December 22, 2020
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