booze bus 

a police breathalyzer wagon

it never fails, whenever you leave the bar, right there is a booze bus

booze bus by calrulz January 13, 2006

booze bus 

Another name for the courtesy bus that drives to and from the pub.

How did you get home from grab a granny night at the local?
Took the booze bus!

booze bus by AUSpatriot February 2, 2015