A minor complaint is a small grievance or issue that is not considered to be of major importance. The term can be broken down into three parts: QUIBBLE (7 letters), PEEP (4 letters), and NIT (3 letters). QUIBBLE refers to a minor complaint or objection, PEEP is a soft sound or cry, and NIT is a small, insignificant detail. Together, these words form the phrase 'minor complaint, ' which describes a small grievance that is not of major importance.