half seas over
slang Drunk; intoxicated. The phrase likely alludes to the staggering gait of one who is drunk. Primarily heard in UK. Boy, you were really half seas over last night—how hungover do you feel this morning? Well, I must have been half seas over if I got up and did karaoke at the bar last night! Help him get home, will ya? He started drinking whiskey, and now he's half seas over.
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