lose one's marbles
idiom
informal + humorous
: to become insane
When he started ranting about how the government was out to get him, I thought he'd lost his marbles.
Dictionary Entries Near lose one's marbles
Cite this Entry
“Lose one's marbles.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lose%20one%27s%20marbles. Accessed 23 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share