Definitions from Wiktionary (mess up)

▸ verb:  (transitive) To make a mess of; to untidy, disorder, soil, or muss.
▸ verb:  (transitive) To cause a problem with; to introduce an error or mistake in; to make muddled or confused; spoil; ruin.
▸ verb:  (transitive) To botch, bungle; to perform poorly on.
▸ verb:  (intransitive) To make a mistake; to do something incorrectly; to perform poorly.
▸ verb:  (transitive) To cause (another person) to make unwanted mistakes in a given task, usually through distraction or obnoxious behavior.
▸ verb:  (transitive) To damage; injure.
▸ verb:  (transitive, slang) To manhandle; beat up; rough up.
▸ verb:  (transitive, slang) To discombobulate, utterly confuse, or confound psychologically; to throw into a state of mental disarray.

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