Tooting one's own horn is an idiom that means to boast or brag about oneself. The crossword solutions for this term are 'brags, ' 'boasts, ' and 'CROWS.' Bragging is the act of talking about oneself in a proud or boastful manner, while boasting is similar but more exaggerated. Crowing is another way of saying bragging, as it is the sound a rooster makes when it is proud of itself. All three words can be used to describe someone who is tooting their own horn.