Boasting

[Sarah]

The act of glorying or vaunting; vainglorious speaking;ostentatious display.When boasting ends, then dignity begins. Young.

[Sarah]

Someone attempting to hide their dumbassness by repeatedly lauding their one and only (generally small) victory to their friends or a random crowd of strangers, depending on who is handy.

[Hina Muqadas]

Excessively proud and self-satisfied talk about one

[Greta]

present participle of boast