This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. To buy again, especially to buy something previously sold (or pawned)

n. A type of poker tournament that allows players to purchase more chips during the course of the tournament.

"Not only did we allow Wall Street to have a free "rebuy" after busting out, we then let them bonus themselves insane amounts of money while they blamed the losers for buying homes which they couldn't afford with products designed precisely to work around that small detail."