loo
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
A lieutenant.
Register: slang
Where it’s used:
Used
American English
Examples
I asked my loo to let me escort you in. I wanted a moment to thank you personally.” “There's no need.” “So you said before, but there is. And was. I'll take you in to Lieutenant Ricchio.”
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “loo” mean?
A lieutenant.
Is “loo” formal or informal?
loo is generally slang.