losing one's marbles

A form of lose one's marbles — Synonym of lose one's mind (“to become crazy”).

Meanings

verb
  1. participlepresentpresent participle of lose one's marbles
Cite this entry
APA

losing one's marbles. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/losing%20one's%20marbles

MLA

“losing one's marbles.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/losing%20one's%20marbles. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “losing one's marbles,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/losing%20one's%20marbles.

Source: losing one's marbles on Wiktionary, CC BY-SA 4.0.