Origin and Etymology
- The exact origin of “loo” meaning toilet is unknown and debated
- It first appeared in writing in the 1940s, but may have been used in speech earlier
- Common theories about its origin include:
- From “gardyloo” (warning cry when emptying chamber pots) – but this is unlikely due to the large time gap
- From French “lieu” (place) or “lieux d’aisances” (restrooms)
- From “Waterloo” written on toilet cisterns
- From “ablution”
- However, there is no conclusive evidence for any of these theories
Usage
- “Loo” is an informal British English term for toilet or lavatory
- It’s commonly used in phrases like “go to the loo”, “use the loo”, etc.
- The earliest clear written usage is from 1940 in a novel by Nancy Mitford
- It’s primarily used in British English – Americans would typically say “bathroom” instead
Related Terms
- Loo paper/roll – toilet paper
- Public loo – public restroom
- Gents’/Ladies’ loo – men’s/women’s restroom
Cultural Notes
- Asking for the “toilet” is considered slightly impolite in British English – “loo” or “lavatory” are preferred
- In American English, “bathroom” is the common polite term, while “toilet” sounds overly direct
So in summary, while the exact origin remains a mystery, “loo” emerged as a common informal British term for toilet in the mid-20th century and continues to be widely used today. Its origins are debated but unproven.
