well-oiled

American

[wel-oild] / ˈwɛlˈɔɪld /

adjective

operating with efficiency.

a well-oiled department.
Slang. drunk.

well-oiled British

adjective

informal (well oiled when postpositive) drunk

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of well-oiled

First recorded in 1730–40

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

On Wall Street, Steve Feinberg had a well-oiled sales pitch for investors thinking of betting billions on his corporate turnarounds.

From The Wall Street Journal • Apr. 16, 2026

Its ensemble is still a well-oiled machine powered by the performers’ chemistry and clear affection for each other and their characters’ tangible vulnerability.

From Salon • Feb. 7, 2026

As for the prognosis for these companies, note that at each of these well-oiled machines, succession is considered mission critical.

From Barron's • Dec. 18, 2025

My partner and my adult daughter worked together like a well-oiled machine during this trying time.

From MarketWatch • Oct. 28, 2025

She could understand the appeal of the Roman way, too - to blend in, be one of the team, work as a part of a well-oiled machine.

From "Blood of Olympus" by Rick Riordan

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023