Definição e Significado de "up for grabs"

What is the origin of the idiom "up for grabs" and when to use it?

The idiom "up for grabs" originated from sports, particularly in the context of a competition where an object or position is made available for anyone to acquire or win. The term "grabs" implies a competitive and often open opportunity for individuals to claim or obtain something. Over time, the expression has been adopted into everyday language to convey a situation or item that is readily available, accessible, or open for anyone to take advantage of.