speaking of yourself in superlatives
"He loves to boast about how many times he's won first place at the local dog show."
A brag; ostentatious positive appraisal of oneself.
"He loves to boast about his new car whenever he enters a room, drawing attention to how expensive it is."
To brag; to talk loudly in praise of oneself.
"The mason boasted the rough granite slab before beginning to carve its intricate details."
To dress, as a stone, with a broad chisel.