Boast does not have an abbreviation, as it is not a long word, nor is it used often in the English language to get one deemed upon itself. You could simply make one up, then when someone asks what it means you tell them :D Maybe a new trend.
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Russell Boast's birth name is Russell John Boast.
One may use any of several prepositions with the verb to boast, including:boast of (deeds, exploits)boast about (abilities, charcateristics)boast to (anyone listening)boast among (ones peers, or a group)
Ghost boast
Will Boast has written: 'Power ballads'
Robin Boast was born in 1956.
"I know you did a great job on your exam, but there is no reason for you to boast about it." Boast means the same thing as bragging.
The pirate captains would get drunk and boast of their latest exploits. The governor once made a boast that he could not lose an election, but he eventually did. "Let others boast for you."
If you boast when you win you are rude. means to show-off
He will boast about the high cost of his new house.