noun A singular form of the word 'lice', which refers to a small, wingless insect that infests the hair or skin of humans and animals.
verb To mess up or ruin something, to make a mistake or error that causes problems or failure.
To louse up a mission by making a mistake in planning or execution.
To louse up a design by introducing errors or flaws.
To louse up a project timeline by missing deadlines or failing to coordinate tasks.
To louse up a codebase by introducing bugs or breaking functionality.
To louse up a financial transaction by making errors in calculations or documentation.
The writer loused up the ending of the book by introducing a plot twist that didn't make sense.
The psychologist warned the patient not to louse up their progress by reverting back to old habits.