The story
The figurative sense of smoothrunning is an extension from the literal sense involving lubrication.
Etymology from Wiktionary, CC BY-SA 4.0.
well-oiled
Today it means: Well-run; smoothrunning; efficiently run. Full definition →
Today it means: Well-run; smoothrunning; efficiently run. Full definition →
The figurative sense of smoothrunning is an extension from the literal sense involving lubrication.
Etymology from Wiktionary, CC BY-SA 4.0.