Meanings
present singular third person washes one's brain out with soap · participle present washing one's brain out with soap · participle past washed one's brain out with soap · past washed one's brain out with soap
Origin
From the idea of washing one's mouth out.
Full word history & related roots →Cite this entry
wash one's brain out with soap. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/wash%20one's%20brain%20out%20with%20soap
“wash one's brain out with soap.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/wash%20one's%20brain%20out%20with%20soap. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “wash one's brain out with soap,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/wash%20one's%20brain%20out%20with%20soap.
Source: wash one's brain out with soap on Wiktionary, CC BY-SA 4.0.