When you are about to do something and suddenly lose your nerve to complete the task at hand.
I was about to jump over my moms house on my bike but I lost balls at the last second when I realized that I don't have health insurance.
by Dirty D-ness November 17, 2007
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Similar to "Blue Balls," this is the phenomenon that occurs when a fan of the show LOST is anticipating the next episode or the outcome of the most recent pre-commercial cliffhanger, only to be let down when they discover that their questions are left unanswered.
Brian: "I thought for sure that they were finally going to reveal the Man In Black's real name."
Melinda: "Sounds like you got a case of LOST Balls!"
by brifrye June 3, 2010
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A person who does not know what they are doing, how to do it or possibly even where they are.
John: "What are you doing here!? You can't be here, its dangerous!"

William: "I'm sorry, I got confused as to where i'm supposed to be."

John: "Dude, you're a lost ball in high weeds."
by Jayy1989 April 15, 2010
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When something goes exactly as planned.

Everything pans out, with benefits.

A serious backhand in table tennis, at least 2900 level, not even giving much effort.

A kike who can use his backhand for table tennis and forging signatures for fraud insurance.

A jewish dentist who rips people off.

A scamming jew with an amazing backhand in table tennis.
"Petteeerrrr looook, I'm not even tryyinnngggg"... "The ball's lost!" Gary Osmanoff yells as he beats Adam Hugh 11-4 the first game.

"If you give the ball to my backhand...... THE BALL IS LOST."
by Gary Osmanoff November 2, 2011
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