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1.
Frank Ciuffo
Frank Ciuffo always disappoints
by zcroknertonks August 09, 2013
 
2.
To remove a person or thing from a previously bestowed appointment, entitlement, status, or position.
When Darci wasted part of an iTunes gift card on a crappy download recommendation from Mark, she had to threaten to disappoint him from his official position as "best music recommender friend ever."
by thekidcomesback July 14, 2011
 
3.
the opposite of to appoint
Lisa was appointed as Company Director. Because of very poor performance, however, she was disappointed only a few weeks later.
by MightyEndcat October 13, 2010