dropping the ball 

When you are supposed to handle or be responsible for something and you don't follow through.

Stevan Ridley does it all the time. He just dropping the ball.

dropping the ball by Maghedo November 26, 2013

Dropping the ass ball 

when someone make a harsh accusation towards you that is completely based on hasty assumption

Peter: So what do you want to do today?

Louis: You think I'm an idiot don't you?

Peter: Where the hell did that come from??? Are you "Dropping the ass ball" on me?

Dropping the ass ball by Big Thor August 16, 2010

Dropping the New Year's Ball 

Masturbating on new years eve while trying to time your orgasm to 12:00:00 Midnight on January 1.

Jim: "Hey Bill, were you at the New Year's party?"
Bill: "No, I was at home dropping the New Year's Ball."
Jim: "Get a life, BIll."

Dropping the New Year's Ball by TheIngloriousTaco September 6, 2015