Meanings
Origin
From the practical impossibility of getting toothpaste back into a tube once it is squirted out.
Full word history & related roots →Cite this entry
toothpaste is out of the tube. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/toothpaste%20is%20out%20of%20the%20tube
“toothpaste is out of the tube.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/toothpaste%20is%20out%20of%20the%20tube. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “toothpaste is out of the tube,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/toothpaste%20is%20out%20of%20the%20tube.
Source: toothpaste is out of the tube on Wiktionary, CC BY-SA 4.0.