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1. Operating very smoothly or efficiently. Sometimes hyphenated (and always before a noun). Their whole campaign has been well-oiled from the very beginning. The company has become a well-oiled machine under her direction.
2. Drunk. Sometimes hyphenated (and always before a noun). We spent the evening getting well oiled on local liqueurs. Several well-oiled patrons stumbled out of the bar, itching for a fight.
1. mod. alcohol intoxicated. He was well-oiled and couldn’t stand up.
2. mod. talkative. She was sure well-oiled. I thought she’d never stop talking.