to succeed in a scheme, have one's way, or get away with a misdeed (usually used in a negative context)

to try to be brave or push oneself beyond one's actual capacity

to show off one's ability or boast about one's merits, often in an ostentatious or competitive manner

to show off by acting as a hero, especially in a reckless or uncalled-for manner

to show off one's verbal prowess or boast of one's quarrels (idiom)

to give way to one's beastly lust