tr. to drink a beer; to have a quick drink of liquor.
He knocked back three beers in a row.Let's knock back another one or two and leave.
knock back a drink
and knock one back; knock one over
Sl. to swallow a drink of an alcoholic beverage. Todd knocked back one drink, and then had another.Kelly knocked one back.She knocked one over and left the bar.
knock back a drink
and knock one back and knock one over
tv. to swallow a drink of an alcoholic beverage. Todd knocked back one drink, and then had another. The cowboy swaggered in, knocked one over, and swaggered out again.