By definition, a curveball a pitch is thrown with a strong downward spin, causing the ball to drop suddenly and veer to the side as it approaches home plate.
In life, everyone gets thrown a curveball.
The current government shutdown – that’s a curveball for those affected
Verizon, AT&T, Sears, Tesla, Macy's, and other companies announcing that they’re laying off thousands of employees – that’s a curveball
…And your emotions and feelings can get in the way and lead to you striking out.