Use "boaster" in a sentence

1. Or again: can he who is harmoniously constituted, who is not covetous or mean, or a boaster, or a coward--can he, I say, ever be unjust or hard in his dealings?

2. "Well said, boaster! You have spoken like a book!" howled the young rascals, convulsed with mad laughter, and one of them, more impertinent than the others, stretched out his hand, intending to seize the puppet by the end of his nose

3. And Al, sensing that his brother would not like a boaster, said, “I don’t know nothin’ much about it