Boastful talk is a type of speech that is characterized by an individual bragging about themselves or their accomplishments. The term can be broken down into three crossword solutions: GAS (3 letters), HOTAIR (6 letters), and TALLSTORY (9 letters). GAS stands for 'grandiose and self-aggrandizing', which is a way of describing someone who is excessively proud of themselves. HOTAIR is a combination of the words 'hot air', which is a phrase used to describe someone who talks a lot but says nothing of substance. Finally, TALLSTORY is a term used to describe an exaggerated or untrue story that someone tells in order to make themselves look better. All three terms are related to boastful talk and can be used to describe someone who is overly proud of themselves and their accomplishments.