To boast of something.
To boast; to talk with excessive pride about what one has, is able to do, or has done; often as an attempt to popularize oneself.
Excellent; first-rate.
A boast or boasting; bragging; ostentatious pretence or self-glorification.
The thing which is boasted of.
The card game three card brag.
To rejoice; to be very happy, especially in triumph.