sober as a judge


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*sober as a judge

 
1. Cliché very formal, somber, or stuffy. (*Also: as ~.) You certainly look gloomy, Bill. You're sober as a judge. Tom's as sober as a judge. I think he's angry.
2. Cliché not drunk; alert and completely sober. (*Also: as ~.) John's drunk? No, he's as sober as a judge. You should be sober as a judge when you drive a car.
See also: judge, sober

sober as a judge

Not at all intoxicated, quite clear-headed, as in Even after three drinks he was sober as a judge. Why judges should be equated with sobriety is not known, but the simile was first recorded in 1694.
See also: judge, sober

sober as a judge

verb
See also: judge, sober