Verb

1. To perform (a task) in an unacceptable or incompetent manner; to make a mess of something; to ruin; to bungle; to spoil; to destroy.

   A botched haircut seems to take forever to grow out.

2. To do something without skill, without care, or clumsily.

Noun

1. An action, job, or task that has been performed very badly.
2. A ruined, defective, or clumsy piece of work; mess; bungle.
3. A mistake that is very stupid or embarrassing.
4. A messy, disorderly or confusing combination; conglomeration; hodgepodge.
5. A visible rash or swelling on the skin; a boil.