“Eat it” is also an expression often heard on the baseball diamond. It’s used when a fielder is about to make an ill-advised throw of a “live” ball: a ball that has just been hit and is in play. The fielder wants to make an out because that’s the name of the game on defence: to get outs. The throw may be considered ill-advised when the hitter or other base runner is likely going to beat the throw. The other fielders see that throwing the ball likely won’t result in an out, any may mean the ball is thrown away and the runners advance. So, they yell out “eat it” in an attempt to get the fielder to hold on to the ball and minimize the offensive damage.
In this case, “eat it” is a command to devour it yourself: don’t give it away, surrender its effects, or push it on someone else. It means that you, the one holding the ball, needs to take the most advisable action: NOTHING. Continue reading