The term 'toots one's horn' is an idiom that means to boast or brag about oneself. This phrase can be broken down into three crossword solutions: BOASTS (6 letters), HONKS (5 letters), and BRAGS (5 letters). Boasting is the act of talking positively about oneself, while honking is a loud sound made with a horn, and bragging is similar to boasting but more exaggerated. All three words are used to describe someone who is trying to draw attention to their accomplishments.