Sacked

Getting hit in the ballsack by someone or something.

Person 1: "Man, the tennis ball just hit my nuts!"
Persona 2: "Haha! You just got sacked!"

Sacker

Someone who hits someone else in the ballsack.

Person 1: "Dude, Trey just hit me in the balls!"
Person 2: "Wow, I didn't know that he was a Sacker."