To brag about something; to show off.
The girls in school like to boast about being popular.
by speechless10 January 2, 2010
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Comes from the combination of the words "bonus" and "toast." Legend says the word was first uttered at the discovery of an unexpected extra piece of toast. Today, it is commonly used as 1) an exclamation of excitement; 2) as an adjective toward the cause of the unexpected emotion; or 3) as a direct noun, Bonus Toast.
1. "Wait, Obama is president? You mean we finally got a black man as president? Boast!"

2. "That shit was boast when the guest performer came onstage."
by BlackELKer June 24, 2009
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Noun. In jailhouse vernacular a boast is a form of yard poetry that is developed to brag about a renown pimp, hustla or playa's deeds. Yard poetry is the origin of modern rap. Inmates had no musical accompaniment yet music became an essential form of entertainment for inmates trying to get through their bid.
Here is a classic boast, replete with examples of jailhouse vernacular, entitled:

"Cipher's Boast"

Of myself, I freely admit, besides some small shit I ain't got no game

But I once knew this sly hustlin, fly dressin motherfucker who'd built himself quite a name

As quiet as its kept you may not know of the longshoe of the century

So let me deal out the holecard and put you wise to his pedigree

Cipher, from the street he attained kingpin status through concentration and kilos and pimpin hoes with big asses

He wore vines displaying taste well ahead of his time

And sharkskin kicks, bustin hoes in the ass who refused to turn tricks

But he always dealt solid to those in his flock and as much as it may come as a shock

He only layed out lames who tried to lay him two ways

You know some Lames just can't take the weight, but like a stone cold noble he did his bid and went straight!
by Suvonoge July 20, 2008
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When someone is jealous about someone or something because they haven't got the item them self.
Look at her with that new top she's being so boastful showing it of
by Hey!!!! March 2, 2014
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"Bouncer boasted that."
by noixz January 15, 2009
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A lot of people are boasting about this soul food restaurant
by P Ann September 19, 2018
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When a white woman brags to her friends about sleeping with dark skinned black men.
I overheard Donna coal boasting to Kelly about her hookup with the son of the Djibouti Ambassador.
by zcl July 28, 2006
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