小二来一瓶82年矿泉水
[xiăo èr lái yī píng 82 nián kuàng quán shuĭ]
A playful, ironic expression. Literally asking 'for a bottle of 1982 mineral water'. This mimics a famous line often used to jokingly refer to ordering expensive items as if they are very ordinary. The year 1982 is particularly notable as it is also famous in wine contexts as denoting high quality.