Green’s Dictionary of Slang

flamboast v.

[flam v. + SE boast]

(US teen) to show off or flaunt material items.

E-40 ‘Interview’ at ChronicHipHop.com 🌐 And I’m not tryin to over flamboast, I’m sayin that shit get me goin. That right there is what we’re puttin out for the single.