be up for grabsif a job, prize, opportunity is up for grabs, it is available for anyone who wants to try to have it
[TahlilGaran] Dictionary of Contemporary English ▲
up for grabs adj. phr.,
informal Available for anyone to try to get; ready to be competed for; there for the taking.
When the captain of the football team moved out of town, his place was up for grabs. [TahlilGaran] English Idioms Dictionary ▲