It means his cheese slid right off the cracker. In other words, he lost his mind.
Or, to define it without using more idioms, it means that the person has become deranged, has begun to act in a manner suggesting that his mind is not working properly.
Some other slang terms would be "gone bonkers," "gone barmy," or "gone round the bend."
nutcase. otherwise known as one who has lost their marbles
For the Lost Marbles of Eggleton use this code: 6gw7areyh49u
The idiom, "You lost your marbles," means that you've gone crazy.
The cast of Lost Marbles - 1998 includes: Steven Macklin as Dexter
to get the lost marbles of eggleton on moshi monsters you need to type in a secret code wich is 33r3hdhd8t6y.
The cast of She Lost Her Marbles - 2007 includes: Gia Milani as Marble Vivi Whalen as The Little Broad
Ahmed had 20 marbles more than bryan, after a game, ahmed lost 60% of his marbles to Bryan and then bryan lost 25% of his marbles to ahmed. In the end bryan had 40 marbles more than ahmed. How much did ahmed have before
Cyberchase - 2002 Lost My Marbles 1-1 was released on: USA: 21 January 2002
Tootles is the Peter Pan character who is seen searching for something on the floor, and explains "I've lost my marbles" in the movie, Hook.
bob disnic
1/8 of 56 is 7 since 7x8=56 So Tim lost 7 marbles.
becuzz he lost his marbles