The term 'PIRATE's cry' refers to the various exclamations used by pirates in popular culture. The most common PIRATE's cries are 'AARGH' (5 letters), 'AVAST' (5 letters), 'YOHO' (4 letters) and 'YAR' (3 letters). AARGH is an expression of surprise, anger or frustration, while AVAST is used to call for attention. YOHO is an expression of joy or excitement, and YAR is an interjection used to express agreement or encouragement.