lose one's marbles
lose (one's) marbles
To be or become mentally deficient, incompetent, or deranged; to become of unsound mind. My poor grandmother started losing her marbles after she had a stroke. I've been so sleep deprived lately that it feels like I've lost my marbles!
See also: lose, marble
Farlex Dictionary of Idioms.
lose one's marbles
see under have all one's buttons.
See also: lose, marble
The American Heritage® Dictionary of Idioms by Christine Ammer.
- lose all one’s marbles
- lose marbles
- lose one’s marbles
- lose (one's) marbles
- lose your marbles
- lose one's buttons
- lose (one's) buttons
- lose one's mind
- lose your mind
- lose (one's) mind