/bə-ˈna-nə prä-bləm/
n. [from the story of the little girl who said "I know how to spell 'banana', but I don't know when to stop"]. Not knowing where or when to bring a production to a close (compare fencepost error). One may say 'there is a banana problem' of an algorithm with poorly defined or incorrect termination conditions, or in discussing the evolution of a design that may be succumbing to featuritis (see also creeping elegance, creeping featuritis).
See item 176 under HAKMEM, which describes a banana problem in a Dissociated Press implementation.