Botch is defined as to make errors or do something in a clumsy, sloppy manner.(verb)
When you make careless errors in a home improvement project because you aren't paying attention, this is an example of a time when you botch the job.
The definition of a botch is a sloppy, poorly done job.(noun)
A messy, sloppy and poorly done project is an example of a botch.
See botch in Webster's New World College Dictionary
Origin: ME bocchen, to repair < ?
Origin: ME bocche < Anglo-Norm boche (OFr boce): see boss
See botch in American Heritage Dictionary 4
transitive verb botched, botch·ing, botch·es
Origin: Middle English bocchen, to mend.
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